I like the spreadsheets for a few reasons. They are a bit easier to fill out than the current wiki option, we don't really have to worry about server speed or downage, and we won't have to worry about needing to find another new home for character sheets down the road.
The sheets do look nicer on the wiki, I don't think there's much debate there. However, I have a few reservations about moving them to a new wiki. Even if we found a free-to-use MediaWiki site, I'd be concerned about server reliability, speed, and whether or not it'll still be here as long as we need it. That, to me, is the biggest reason I'm leaning towards the google docs - I really, really don't want to have to have all the characters moved again down the road.
I'll hold off voting for now, but to quote Scorpius I think it's our least bad option right now. And we do need to do something. We've been warned for a long time now that the wiki is going to go eventually. If we just sit here in our comfort zone with the old wiki, one day it'll shut down and we'll be in a very tight spot.