Funny, because I read a lot of disgust over
![Wii Fit Trainer Female :4wiifit: :4wiifit:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
's inclusion with her being a "waste of a slot" and "from a niche series".
When I say "best" and "Reaction" those definitions actually differ depending on which character we're talking about.
Villager's reaction was mostly tame, some people liked, some didn't, but it wasn't very extreme.
Megaman's reaction was almost undoubtedly the best one in terms of raw excitement. You could hear the scream and the heart attacks from miles away.
WFT's was best in terms of shock and confusion, nobody really knew what to think.
Rosalina's was also relatively tame, though I'm sure Rosalina's fans were really happy, especially with how much she was being called "An unlikely choice".
Little Mac's was one of the best (in terms of positivity) in the west, but in the east it had a lot of negativity.
Greninja's was one of the best in terms of bait and switch/unexpected result. It was really positive though, most reactions I saw were, "IT'S NOT MEWTWO, BUT I'M OKAY WITH THIS."
Reactions to Miis were VERY black and white from what I've seen. It was either LOVE IT or HATE IT. Though I think everyone agrees that the Mii Trailer was just incredible.
Palutena reactions were actually pretty underwheming. Not much happened with that.
Pac-Man reactions were emostly very excited and intrigued, although those were pretty underwhelming too. Although that's probably because of the strange way he was revealed.
Robin reactions mostly consisted of "Gematsu's dead!" which got real old real fast, I barely saw anyone who was actually excited for the character him/herself, even in the Robin thread, there were tons of "Gematsu's dead!" comments. That said, it was one of the best reactions for me personally, because literally minutes after watching the trailer, I got pushed over the edge of two cliffs, and both bought FE: Awakening (My first FE game) and joined SmashBoards.
The Shulk, Bowser Jr., and DH reactions were just so underwhelming it's not even funny. That stupid leak kinda ruined people's reactions to those 3. Although the Shulk thread still seemed pretty excited when he was actually revealed in his trailer. (Because apparently they thought he was a Marth clone, and the trailer dispelled those fears.)
DP was so negative, no need to go into that.
and Lucina was actually kinda glanced over from what I saw, mostly due to Robin being the star of the show.