Tiered hero def chart. Rank is based on maximum level and neutral IVs. Any new hero will automatically be added with database updates.

Max DEF Rankings
DEFHEROES
38 Arden, Strong and Tough
37 Hector, Just Here to FightSurtr, Ruler of Flame
36 Draug, Gentle GiantHector, Brave WarriorMyrrh, Spooky Monster
35 Gwendolyn, Adorable KnightHector, Marquess of OstiaLukas, Sharp SoldierZelgius, Jet-Black GeneralZephiel, The Liberator
34 Beruka, Quiet AssassinDorcas, Pumpkin SmasherEphraim, Sacred Twin LordHector, General of OstiaXander, Paragon Knight
33 Ephraim, Sparkling GallantlyFrederick, Polite KnightHardin, Dark EmperorHinata, Wild SamuraiHríd, Icy BladeLaegjarn, Sheathed SteelSheena, Princess of GraSilas, Loyal KnightTiki, Legendary DragonWalhart, The ConquerorXander, Student Swimmer
32 Amelia, Rose of the WarBlack Knight, Sinister GeneralChrom, Gifted LeaderDorcas, Serene WarriorHelbindi, Savage ScourgeIke, Brave MercenaryIke, Vanguard LegendLissa, Pure JoyMichalis, Ambitious KingMyrrh, Great DragonOboro, Fierce FighterRobin, Fell ReincarnationRobin, Festive TacticianShiro, Raw TalentSubaki, Perfect ExpertTiki, Naga's VoiceXander, Spring Prince
31 Chrom, Knight ExaltCorrin, Enjoying TraditionCorrin, Fateful PrincessEffie, Army of OneEldigan, LionheartGerome, Masked RiderGunter, Inveterate SoldierLaevatein, Searing SteelLíf, Lethal SwordsmanNephenee, Fierce HalberdierSigurd, Holy KnightTharja, "Normal Girl"Valter, Dark MoonstoneXander, Dancing Knight
30 Ares, Black KnightBartre, Fearless WarriorEphraim, Legendary LordFae, Holiday DearGaron, King of NohrJakob, Devoted MonsterKana, Dragon PrincessSaizo, Angry NinjaTobin, The Clueless One
29 Alfonse, Prince of AskrAzama, Carefree MonkBoey, Skillful SurvivorCherche, Wyvern FriendClive, Idealistic KnightCorrin, Dream PrincessDonnel, Village HeroEphraim, Restoration LordFinn, Lance of LegendGordin, Altean ArcherHenry, Twisted MindIke, Young MercenaryKagero, Beverage NinjaLinus, Mad DogMarth, Hero-KingMinerva, Red DragoonNarcian, Wyvern GeneralSaber, Driven MercenarySelena, Cutting WitSeth, Silver KnightTiki, Beachside ScionTiki, Dragon ScionTiki, Summering Scion
28 Arthur, Hapless HeroAyra, Astra's WielderBerkut, Prideful PrinceCamilla, Holiday TravelerCamilla, Spring PrincessCamus, Sable KnightChrom, Exalted PrinceCorrin, Dream PrinceEirika, Gentle as SnowFjorm, Princess of IceJoshua, Tempest KingKana, Dragon SpawnLeif, Prince of LeonsterLeon, True of HeartLuke, Rowdy SquireOwain, Chosen OneQuan, Luminous LancerReinhardt, Thunder's SwordRobin, Fell VesselSeliph, Heir of LightSiegbert, Future KingStahl, Viridian Knight
27 Alfonse, Spring PrinceBarst, The HatchetCatria, Middle WhitewingCecilia, Festive InstructorCelica, Warrior PriestessEliwood, Devoted LoveGray, Wry ComradeInnes, Flawless FormJamke, Prince of VerdaneLaslow, Dancing DuelistMarisa, Crimson FlashMarth, Altean GroomMarth, Altean PrinceMatthew, Faithful SpyNowi, Eternal YouthRobin, High DelivererRobin, Mystery TacticianSharena, Princess of AskrSumia, Maid of FlowersVeronica, Emblian Princess
26 Alm, Hero of ProphecyAthena, Borderland SwordCain, The BullCamilla, Bewitching BeautyChrom, Spring ExaltCordelia, Knight ParadiseCorrin, Fateful PrinceEirika, Graceful ResolveFrederick, Horizon WatcherHawkeye, Desert GuardianLibra, Fetching FriarLissa, Sprightly ClericLucina, Brave PrincessMerric, Wind MageMia, Lady of BladesOgma, Loyal BladePalla, Eldest WhitewingRobin, Seaside TacticianRyoma, Supreme SamuraiSoleil, Adorable AdorerSophia, Nabata Prophet
25 Celica, Imprisoned SoulEirika, Restoration LadyGharnef, Dark PontifexLyn, Lady of the PlainsLyn, Wind's EmbraceNoire, Shade SeekerOlivia, Blushing BeautyOscar, Agile HorsemanReinhardt, Thunder's FistRoy, Brave LionRoy, Youthful GiftsRyoma, Peerless SamuraiShigure, Uplifting ArtistVirion, Elite Archer
24 Abel, The PantherClarisse, Sniper in the DarkEthlyn, Spirited PrincessFae, Divine DragonFaye, Devoted HeartFlorina, Lovely FlierHenry, Happy VampireHinoka, Warrior PrincessJaffar, Angel of DeathJagen, Veteran KnightJakob, Devoted ServantKarel, Sword DemonLeo, Sorcerous PrinceLucina, Future WitnessLucina, Glorious ArcherLyon, Shadow PrinceMarth, Enigmatic BladeNiles, Forbidden TeaseOdin, Potent ForceOlivia, Sky-High DancerRaven, Peerless FighterRoderick, Steady SquireRoy, Young LionShanna, Sprightly FlierTakumi, Empty VesselTakumi, Wild CardTana, Winged PrincessTitania, Mighty Mercenary
23 Caeda, Talys's HeartCharlotte, Money MaidenClair, Highborn FlierElincia, Lost PrincessEst, Junior WhitewingFir, Sword StudentJeorge, Perfect ShotKliff, Curious SpiritLegault, The HurricaneMathilda, Legendary KnightSakura, Loving PriestessSully, Crimson Knight
22 Camilla, Tropical BeautyEliwood, Knight of LyciaHana, Focused SamuraiKarla, Sword VassalLene, Yearning DancerLyn, Bride of the PlainsNavarre, Scarlet SwordNinian, Oracle of DestinyOliver, Admirer of BeautyPeri, Playful SlayerTharja, Dark ShadowThrasir, Omnicidial Witch
21 Anna, CommanderAzura, Celebratory Spirit???, Masked KnightCecilia, Etrurian GeneralCelica, Caring PrincessClarine, Refined NobleCordelia, Knight ParagonCorrin, Novice VacationerGaius, Candy StealerInigo, Indigo DancerKagero, Honorable NinjaLachesis, Lionheart's SisterLegion, Masked ManiacLon'qu, Solitary BladeLucina, Spring ExaltMia, Moonlit WitchRaigh, Dark ChildSetsuna, Absent ArcherSothe, ZephyrWrys, Kindly PriestYlgr, Fresh Snowfall
20 Azura, Lady of the LakeCanas, Wisdom SeekerGenny, Endearing AllyLyn, Lady of the WindNanna, Nordion PrincessRebecca, WildflowerRhajat, Black MagicianRyoma, Dancing SamuraiSerra, Outspoken ClericShigure, Dark Sky SingerTakumi, Prince at PlayTharja, Obsessive BrideVeronica, Brave Princess
19 Azura, Lady of BalladsEirika, Anamnesis LadyElincia, Estival PrincessKlein, Silver NoblemanLilina, Blush of YouthLloyd, White WolfMikoto, Caring MotherMist, Helpful SisterMorgan, Lad from AfarNowi, Eternal WitchOlwen, Blue Mage KnightOphelia, Dramatic HeroineTana, Noble and Nimble
18 Caeda, Talys's BrideCordelia, Perfect BrideElise, Budding FlowerGaius, Thief ExposedGunnthrá, Voice of DreamsLilina, Delightful NobleMaria, Minerva's SisterNino, Pious MageOlwen, Righteous KnightPriscilla, Delicate PrincessUrsula, Blue Crow
17 Catria, Spring WhitewingElise, Tropical FlowerFelicia, Maid MayhemFlora, Cold as IceKagero, Spring NinjaLyn, Brave LadyMicaiah, Priestess of DawnMicaiah, Summer's DawnNinian, Bright-Eyed BrideSaias, Bishop of Flame
16 Arvis, Emperor of FlameAversa, Dark OneAzura, Young SongstressCamilla, Flower of FantasyHinoka, Blue Sky WarriorIshtar, Thunder GoddessJulia, Naga's BloodKaze, Easygoing NinjaL'Arachel, Princess of LightLeo, Seashore's PrinceLewyn, Guiding BreezeNiles, Cruel to Be KindNino, Pale FlowerSanaki, Begnion's ApostleSilvia, Traveling DancerSoren, Shrewd StrategistTailtiu, Thunder NobleTakumi, Prince of Soup
15 Deirdre, Lady of the ForestJulius, Scion of DarknessKatarina, Wayward OneLinde, Summer RaysLoki, The TricksterLute, ProdigyMae, Bundle of EnergyMaribelle, Dire DamselMorgan, Lass from AfarNina, Eye SpyOlivia, Festival DancerSanaki, Apostle in WhiteSharena, Spring PrincessSonya, Vengeful Mage
14 Eir, Merciful DeathInnes, Regal StrategicianLinde, Light MageSakura, Gentle Nekomata
13 Delthea, Free SpiritLucius, The Light