wow.. out of all of those, I think i've only been to about 3, and probably only heard of about 6
What kind of food do you like?
I like Kerby Lane for breakfasty food (4 in town)
For BBQ, Rudys or Poke Jos
Thundercloud and Delaware make great subs
Maudies (out on 360) is awsome mexican and very reasonably priced
EZs is a regional chain - I like the one on Lamar
Chueys is really good mexican and there are many in town.
It would really help if you said "whats the best X in Y part of town" otherwise, there are too many great places to list.
All those are good except Chuys, and the Kerbey Lane up North. Chuys is so overrrated :|