If you like Mexican/Tex-Mex Food, you'll probably want to participate in this blog.  Lots of qualities to consider when citing one's all time favorite Mexican restaurant.  For instance:

Location
Price
Authenticity of ingredients
Freshness of produce
Quality of foods
Bilingualism of staff
Friendliness
Overall ambiance

I'd be interested to learn what is your favorite Mexican/Tex-Mex Restaurant.  Give suggestions please.