I'll recompile my posts from last year's bowl game when the official announcement is made, but I would suggest booking away from the stadium unless you care about literally nothing else besides the game. The area around Reliant is a giant wasteland of parking lots, with not much in the way of dining, nightlife, or entertainment.
You might look into other areas of town where you can go out and have a good time before and after the game, and then just take the train in to the game (or park and tailgate).
It's easier to get back and forth to the game one time than it is to get back and forth from a Reliant-area hotel every single time you want to eat or do anything fun that weekend.