Well, ZeRo recently started a tier list series and this was the top 17.
[Part 1] [Part 2]
1. Shiek - Boring to me.
2. Rosalina - Cancer.
3. Luigi - Cancer.
4. Pikachu - Really fun but I can't seem to play him.
5. Diddy Kong - As a Nintendo character I love Diddy. I'd consider it.
6. Ness - Cancer.
7. Mii Brawler - Cancer.
8. Sonic - Tried it. Felt dirty.
9. Villager - Hate this thing.
10. Fox - Maybe.
11. Zero Suit Samus - Fun but not for me.
12. Mario - ^
13. Olimar - I'm considering it.
14. Captain Falcon - Can't do it. Half my state plays this character.
15. Yoshi - Cannot stand this thing.
16. Pit & Dark Pit - I like the Pits so maybe.
17. Wario - Already listed why I don't want to use him.
Any of those characters sound appealing at all besides Wario? If you hate playing campy, well, most of those characters have good camp options. lol Though both of Fox's defensive moves (lasers and shine) are moreso to force your opponent to approach and Luigi's fireballs mostly creates a wall that limits your opponent's options as he's trying to approach. Captain Falcon is just pure aggression.