Jak- 1 and 2 Supers.
Sir Dan- Supers. All of them
Spike- Supers. Also all of them.
Anyone with a screen clear gets kinda screwed- I've been annoyed more than once when I realize I built AP way too fast and hit level 3 (which should be an odd complaint), but I think Spike's the only one with a screen clear who has no other good supers to make up for it. Supers are all that matter in this game, so... yea.
Not that any Super buffs are likely though. Nor would I put them at highest priority
1.jak-ap gain buff for his weakest attacks, slight lvl 1 and 2 buff
2. Sir dan- lvl 2 and 3 buff
3.fat princess- lvl 3 buff
4. Spike- melee attack speed buff
5.sweet tooth - lvl 2. Buff
This is pretty accurate, although I've gotten owned by all of Sir Dan's specials so I think they're fine. They could buff his speed slightly
As for my favorite character, Jak, I'm not sure if he needs an AP boost. His level 1 is weak, but thats fine - characters have their strengths and weaknesses. But his level 2 super has no range at all. It seems really sporadic. Maybe having a circle around the area of affect will at least make it more clear. And his level 3 seems a lot harder to land hits with than Kratos'.