Muckleshoot
I played there quite a bit last year, as it's where I learned to count (the slow dealers were a plus at that time). The two positives that I recall were a large smoke-free section and free soda dispensers.
There was a separate building that was entirely smoke-free but the chips were different and you couldn't use chips acquired in one building at the tables in the other (main casino). You also couldn't walk the 50ft. between buildings carrying a beer (silly). I think they are connecting these buildings so now that might not be an issue.
I have no reason to go back to Muckleshoot since the Snoqualmie store opened a few months ago. They offer a slightly better and faster game (ASMs), the cocktail waitresses are better looking, and it still has that "new" smell.