I have yet to meet a person who didn't think that The Chandelier is awesome. Its a bar inside a crystal-y sparkly eye catching chandelier! When you think of Cosmo, you think of this chandelier.
You have the choice to chill downstairs, upstairs or up up stairs. I prefer being up where you are surrounding by the the strands of crystals. Either spot is a great place to just sit, hang out with a few drinks, and converse with friends. Each of the floors has different specialty cocktails.
Bartenders are usually pretty attentive here (although I do remember a time when one was too busy flirting with random girls than serving - typical!). Drink prices are what you would expect, between 7 and 12 bucks I think.
Any one of these bars is worth a stop. Sitting among the sparkly beads feels oh so fancy!