Seeing a game against Notre Dame seems to always be at the top of these type lists. I'd love to see that game, especially if they ever get back to being a national power (which I think they will...but that's neither here nor there)...Nebraska, Ohio State, Southern Cal, Texas and Oregon. I lived in Eugene for a few years, that'd be a fun home/away series.
Heck, I don't think it gets much better than our next game, against Michigan in Dallas. Great tradition from both programs. I've been to an Ohio State/Michigan game in Columbus...I can't stand the Buckeyes just like most other fans, but their game day atmosphere is up there with some of the best.