I was down there in March and really just did not enjoy Crescent City. Decent food, but the beer seemed mediocre, and one was just plain contaminated.
Abita is good and available anywhere, especially the Amber. Any bar with a decent selection will also have NOLA on tap - they have an IPA called Hopitoulas that's great. If you can get to the brewpub they have a couple more unusual things on tap there.