Best Poker rooms in vegas both cash games and tournments?

and most importantly why?
Answers:
I'm personally a fan of the MGM Grand. It's a very different vibe than the standard poker room. Surrounded by the sports book and a really cool bar, it's got a lot of action. Their tourney structure is pretty tight though. You've got to catch cards early to have a chance.

Check out allvegaspoker.com. They have some great reviews of every poker room in Vegas.
Well it all depends on what you want to spend when you are talking about tournaments. As far as cash games Caesars has a very nice poker room, they spread pretty much any game as long as people are interested. I like playing the 2-5 no limit game because there is no cap on the buy in. Caesars also has an excellent tournament as well, the buy in for the 11 am is 80 dollars for 3500 chips and a re buy for 50 bucks. The 7pm tournament is 120 dollar buy in with a 100 dollar re buy. The Venetian and treasure island is also a nice room to play in.... good luck ...