I've been so glued to Xenoblade X that I completely forgot about the Smash presentation. Anyway, time for me to share my opinions.
HOLY MOTHER OF MAGIKARP
Bayonetta was the Smash Ballot "winner"? I thought it would of been Tails or K.Rool or something mainstream. Not that I think Bayonetta isn't a popular game, it just never came to my mind as a possibility, and I certainly haven't seen an overwhelming amount of support for her. Anyway, I'm not really a Bayonetta fan, but she looks really good. Those Smash attacks really impressive looking. I still probably wouldn't normally get that DLC, but my sister has a friend who sometimes visits who really wants to play her, so I may end up getting her on the Wii U version just for him.
Corrin was also really unexpected. He was actually pretty high up on my Smash wishlist, but I never really mentioned him because I didn't think he was really that likely and I didn't want to get my hopes up. It seems Sakurai had a very similar vision of Corrin as I did, with him using his transformation abilities for a variety of different attacks to set him apart from the other sword fighters. I had even hoped for him to be able to just sprout wings in reference to the GBA manaketes, and it seems he can do just that.
I'm not getting any of the mii fighters, but I was really surprised to be Geno. I'm sure some fans must be salty about that, but if I were one of them, I'd be thrilled. The Tails and Knuckles costumes just don't look right to me though.
...Wait, Mewtwo's Fair and Bair got buffs? I already loved those moves to begin with, so awesome.
And Uair kills? That's really nifty.