The three connecting hotels are El Dorado, Silver Legacy, and Circus Circus.
Fitzgeralds is an excellent value, and right across the street from the stadium. However be sure to ask for a room on the NON TRAIN side of the building!
The Atlantis is on South Virginia, about 2-3 miles south of the stadium.
The Reno Hilton is east of the stadium, on Glendale/2nd street.
If you fake it, you can get shuttles from all the big hotels to the stadium, and back again, and the drivers KNOW they have to load bowling equipment. So, if you wanted to, you could take a shuttle from the Peppermill to the stadium, and then catch the return shuttle to the Hilton. (and vice versa...)
John Asquaga's Nugget in Sparks is also a very nice hotel. I used to go to special events there all the time. My office used to be right behind it. I don't know how their rates compare, however.
The Eldorado Buffet is still the best - but the Hilton was remodeling theirs in June - it has always been pretty good, and I think they're about to make it better.
If you want to stay a few miles out, Boomtown in Verdi is about 12 miles west, and is supposedly a good deal. Never seen the rooms there. From now on, since we bought a travel trailer, we'll probably either stay there, or at the Hilton.