So, here are my thoughts on the characters so far.
My favorites a purely based on the characters themselves, their model, personality, and yes, bias for their roles in their respective games. I also listed the characters I have had the most success with, and the ones that I haven't really taken a liking to. Palutena is by far the biggest disappointment; I was so excited to see her in the game but she doesn't have a lot going for her aside from having a beautiful model and attack animations (those wings).
Favorite Characters:
1. Peach
2. Lucina
3. Palutena
4. Greninja
5. Pikachu
6. Zelda/Sheik
7. Link
8. Bowser
9. ZSS/Samus
10. Rosalina
Most Effective:
1. Rosalina
2. Zero Suit Samus
3. Peach
4. Lucina
5. Bowser
6. Marth
7. Greninja
8. Sheik
9. Bowser Jr.
10. Robin
11. Lucario
12. Fox
13. Lil Mac (Must use purple hoodie alt.)
14. Yoshi
15. Duck Hunt
Least Effective:
39. Samus
40. Game and Watch
41. Olimar
42. Zelda (She's a bit better.)
43. DK
44. Luigi
45. Wii Fit Trainer
46. Charizard
47. Palutena :(
48. Mega Man
Which characters did you guys think were most useful so far?