I still prefer Buzz. While I do enjoy TSMM, it's the same issue I have with the Pirates of the Caribbean thread going around right now: I don't need CGI rides/video game rides because I already have plenty of that at home. Yes, it's cool to put on the 3D glasses and have at it, but I can get a much more advanced version of that playing a lot of different sorts of games at home (plus, it is a little rough around some of the corners, not a huge deal, but my mom did find it worth noting after riding it). Whereas I don't have full models to go through with targets on them. Plus, I feel like it takes more skill in the Buzz ride since you are focusing on a full, three dimensional space and you have to know what targets deliver more points.
Again, maybe this is just me being used to video games, but when I have games like Uncharted all the way to Dark Souls, I find it harder to be wowed by rides that rely on less exciting versions of that (sort of like how the new Test Track has a very old feeling program for the car customization).
That said, I am pretty good at TSMM and if the wait isn't bad I'm all for a go at it.