A popular hangout is The Woods, located on Park Street.
Oceana on the harbourside features 5 bars and 2 clubs all under one roof,
The syndicate is another popular and highly rated bar, as is o2 Bristol
Or for the best cocktail mixologists, try The Living Room.
http://www.oceanaclubs.com/bristol
http://www.qype.co.uk/place/291317-The-Woods-Bristol
http://bristolnightlife.com/#/the-syndicate/4534203164
http://www.o2academybristol.co.uk/
A list of reviews and ratings:
http://bristolnightlife.com/#/full-review-list/4534764711