I expected Villager, good fit. Funny name, but I guess it can't be helped. I expected it to be "Boy", but then again Villager works well if there's the likely female equivalent as an alternate form.
I think they did a great job with Mega Man. He seems very much like how I feel Mega Man should be. He wasn't bad in the first two Marvel Vs. Capcom games but here he looks way better. Scary when Nintendo can do Mega Man better than Capcom (then again, Capcom isn't doing anything with him, so anyone could easily do better at this point). Also, in terms of non-Nintendo characters, a much better fit than Sonic the Hedgehog and Solid Snake.
The Wii Fit Trainer is neat. I like the representation of the diverse stable of "characters" that Nintendo has. And besides, they can't exactly increase the roster with many more old characters, so they might as well throw in some introduced last gen. Here's hoping for someone from the "Operation Rainfall" trinity of games...