I'm pretty fond of the Rio. It's not "on" the strip, but it's close enough, and there are free shuttles to The Mirage/Treasure Isle.
The Rio caters to Adults, has a great pool area (with a sand beach), has some of the best restaraunts in town (...like 13 restaraunts), all the rooms are suites, the casino is excellent (and spacious), pretty good comps, a huge spa, and one of/the hottest night clubs in the city. They have two huge buffets, one is a seafood buffet and s'posed to be excellent (especially for a buffet).
If you're looking for decent & cheap, you won't find it on the strip. Check out The Orleans. Nice place, pretty good casino, decent food. Another place would be Palace Station (or any of the "Stations, acutally), again, not on the strip, closer to downtown, pretty cheap, casino is so-so...depending what kind of gambling you like to do. The Orleans and "Stations" are "locals" places....nice enough, but still (relatively) inexpensive. Palace Station is reputed to have "The Best" (according to some third party ratings) buffet in the city.
That's it for now....post what you're interested in doing and perhaps we can zero in on something......
Good Luck
Scott
(There weren't any other posts when I started responding to this.....then there were three....)