Unfortunately I don't know the current individual club pricing, But I recall it's only a value if you are going to only one club all night long. If you are thinking you'll club-hop at all, then you are better doing the Party pass since it's cheaper than 2 individual club cover charges.
the Party pass usually runs about $13 and lets you into every club at Citywalk.
I believe every bar/club on that side of Citywalk requires a cover after a certain time. This includes the bar/restaurants which during the day don't require a cover (such as Margarrittaville and Pat O'brians.).
This would include Margarrittaville, Latin Quarter, Groove, Bob Marley, Rising Star, Pat O'brians, and Red Coconut. (I think that's all of them.... I may have missed one though)