I stayed at the Rennaisance. (sp?) It was great, as I went down to the bar and had a great time chatting with a fellow interviewee, 2 guys doing recurrent, and 2 or 3 guys in their 1st week of newhire. Most of your fellow interviewees will be there too so you can chat in the lobby and on the bus the morning of.
However, The best rate I was able to get was extremely expensive and I'm not sure I'd do it again at that rate. If you can get a good rate competative with other hotels in the area then by all means stay there. If you can get a room for significantly less elsewhere, use the savings to rent a car, see the city, and maybe swing by the Renn on your way back to your hotel the night before.