We've been to TTR a few times, have our first trip planned in a couple of weeks to GOV and have never been to Golden Parnassus. My impression of GP is that it's just another adults-only resort though - nothing particularly risque about it, not topless optional. We've been to lots of resorts like that (we travel AI exclusively - no kids on my vacation please!) and while they tend to be much nicer in terms of facilities, restaurants, and service, they are VERY quiet ... far from party atmosphere. TTR is at the other end of the spectrum. Rooms are only ok, not a huge selection of restaurants and quality is decent but nothing exceptional, BUT if you want to get half naked and party your ass off, that is the place for you! From what I can tell based on trip reports so far, GOV is somewhere in between. Nicer facilities, quieter atmosphere, but still sexier and more "fun" than your standard AI resort.