I have the Adidas Supernova Glide 6 with Boost. These are the Response Boost, and they are on sale right now for a very good price. Some people like the Techfit upper. I tried these on in the running store, and they felt every bit as good as my Supernovas. But these are 40-50 dollars cheaper. Some naysayers will tell you that these aren't the "top-of-the-line" Boost shoes, but I think that's mostly based on price. I'd probably take the advice of some of the customer reviews and get the Techfit upper one half size larger, but they may stretch a bit anyway if you don't like the snug, sock-like feel. Check it out:
http://www.adidas.com/us/response-boost-shoes/M21908_540.html