Ultima Weapon had a decent ATK And MAG. Fenrir is the strongest ATK Keyblade, but has low MAG attribute and negative combo. Fatal Crest is the strongest MAG Keyblade, but low ATK.
Ultima Weapon = 6 ATK, 4 MAG, MP Hastega (Very usefull!)
Fenrir = 7 ATK, 1 MAG, Negative Combo (-_-)
Fatal Crest = 3...