I still have some love for sonic, I grew up with my brothers teaching me how to draw sonic getting his head chopped off, mario locking him in prison and throwing away the key etc.. but I always liked him, I was a little kid, and sega's shallow advertising worked

I remember going to my friends house, playing sega with him, and being all like "whoa, the ground's all curvy" since just about everything in mario games were made out of blocks at the time.
then like 10 years later or something, I decided to buy sonic advance, and it was pretty fun, not that great, but fun
then I bought sonic advance 2, and it kinda got me back into it, he was ridiculously fast in that game, had some cool effects, introduced the trick system, some really cool level design, and I liked how you were always running in the boss fights
even though sonic advance got me slightly interested in the 3d sonics, since there was a GBA-GCN link up thing, I had a look at the GCN box at a store and I could just tell it was bad, so I never bothered with the 3D games, and it seems to be pretty clear that sega still really doesn't know how to make a 3d sonic game.
So.. I've never really felt like sonic should just be hung up, because the 2D games are still good (except for advance 3), and I think sonic would fit in fine on SSBB, sega made that 3D fighting game on GBA with all the sonic characters, and I think it got pretty good reviews, plus SSBB's gameplay is 2D, sonic's bread and butter.
oh and the mario-sonic olympic game, one of the lamest announcements ever.
such an anticlimactic resolution to years of rivalry, it's meant to be like the final test to determine who is the ultimate mascot, but the olympics? thats so lame