the really good one is Nomad's BBQ, big black guy (Theo, I think) with a smoker, will sell you the best smoked pulled pork sandwich for 5 or 6 bucks. Also his smoked turkey legs (they're freaking huge) are ridiculously underpriced and bomb diggity.
You have to hit up The Last Call for the Cali burrito, it's take out only but def the best burrito in Abq. As far as new mexican food, can be tough in the city without going up to santa fe, though El Patio (a half block from the university) is decent. El Patron isn't too bad either tho
as above poster said, B2B is a pretty good burger joint (arguably best in Abq), basically across the street from the Last Call (Richmond location).
Any Marble brewery location is awesome, so def stop in there before you leave. Might have live music, check their website if you're interested.
crappy city as far as crime is concerned but some decent food and brewhouses, and even better outdoor scene, you HAVE to run la luz trail if you have even a little bit of time.