KraVE Massive has been closed and now Drink & Drag is closed down but you will love Share Nightclub (make sure they don't get it confused with Cher haha). Share is big and has hot dancers. Also, Piranha is a fun club to check out.
"Garage" is very small. it's a bar not a club but they do have great deals on beer. Charlie's is one of my favorites and it is fun to see the line dances. Revolution on Sundays is fun at the Mirage if you like to dance (only gay night).
I have to comment on Splash closing down in NYC-- XL Nightclub is much bigger and better. The larger clubs aren't really shutting down. It is the nightlife business there is lots of change for good and bad. Gypsy in LV is actually remodeling.. we shall see what (and if) comes out of that.