Here are the stats of the different hero classes in the game so you can compare them between factions. All stats are shown at level 20 as of version 2.8 of the game.

Atk = Attack, Def = Defence, Know = Knowledge, Spell = Spellpower, Lck = Luck, Mor = Morale, Mov = Movement, Cmd = Command, Prof = Proficiency, Ent = Entourage

here are the stats in csv format if you want to make your own csv file. You can copy and paste this into any text editor (like notepad) and save as a .csv file, and then open it in a csv viewer and you'll be able to sort by any column you'd like.

Faction,Class,Attack,Defence,Knowledge,Spellpower,Luck,Morale,Movement,Command,Proficiency,Entourage
Arcane,Artisan,12,12,9,5,0,1,16,15,3,1
Arcane,Wizard,2,2,16,15,1,0,19,8,3,3
Decay,Extinctor,18,13,7,6,0,1,19,10,2,0
Decay,Withermage,5,6,18,15,1,0,20,7,0,1
Delirium,Mouth,18,13,6,1,0,2,17,13,3,0
Delirium,Eye,5,4,15,16,1,0,19,8,4,1
Earthen,Stonemason,13,18,6,1,0,1,14,12,4,2
Earthen,Runecarver,2,6,13,18,1,0,16,8,3,4
Enclave,Highlord,13,18,7,0,0,0,18,12,3,3
Enclave,Snakespeaker,4,6,15,11,2,0,19,8,1,5
Horde,Liberator,16,15,6,1,0,1,20,12,3,0
Horde,Fleshshaper,6,2,18,13,1,0,20,6,1,3
Lament,Tunnelkeeper,18,13,9,6,0,1,17,8,3,1
Lament,Spellblade,7,6,8,18,1,0,20,8,1,3
Order,General,13,16,5,0,0,3,16,13,3,1
Order,Priest,1,9,13,13,0,0,19,10,1,5
Pillar,War Artist,16,10,9,3,0,1,16,15,3,1
Pillar,Sage,2,2,18,13,1,0,18,10,3,3
Pyre,Caprice,16,9,7,4,0,2,17,12,5,1
Pyre,Fireshaper,8,6,13,18,0,0,16,8,2,3
Tide,Seafarer,9,13,9,6,0,1,20,12,1,1
Tide,Sailblazer,5,4,13,15,1,0,18,5,3,5
Wild,Warden,16,11,7,3,1,1,18,9,3,1
Wild,Archdruid,4,8,18,16,1,0,18,6,1,3

Thank you.
Love,
Rat