I remember staying at the Treasure Island (before they are known as the hip T.I.) several years back. This was when I was still in college, and our frat planned out a vegas trip. We had 4 dudes, and 2 sharing a queen sized bed. The rooms were not very spacious, and I barely had any room to move around when I was sleeping. We probably should've gotten 2 seperate rooms, but we were trying to save a buck.
The bathrooms were huge, and they had a TV setup. The view onto the strip had to be the best part. I have to admit, they do make their rooms frat guy proof. One of my friends got wasted and wanted to toss a tall glass vase down the stairwell. But it turns out they were super glued to the cabinet. His plans were foiled probably for a good reason.
The casino hall way had a lot of cute girl traffic on a regular basis. Also during the evenings they had an awesome pirate show. I saw it once, and had to see it again after I got hammered. This is a good place to stay if you have some roommates, otherwise expect to pay 4 star resort prices.