I've been into faux Mexican food lately, so here's my comparison of three popular chains: 

Qdoba - I got a standard chicken, peppers, onions, and cheese wrap, and it was one of the worst food items I've ever attempted to force down my gullet in recent memory.  I'm usually good about finishing my food because I don't like to waste money and I can usually put up with bad-tasting food simply to get rid of my hunger.  This was the exception.  I actually stopped eating my barf wrap and threw it the hell out. 
My rating:  0/5 stars

Chipotle - I mentioned this place a few weeks ago and my feelings haven't changed.  I got the chicken, peppers, onions, and cheese wrap, then the next day I got the steak, peppers, onions, cheese, and rice wrap.  I asked the wrap-maker to skip the rice, but he apparently didn't hear me.  But it might've been the best rice I've ever eaten.  The cilantro really brings it all together.  And the wrap-makers do everything right in front of you, which makes the whole process very transparent and comforting. 
My rating:  5/5 stars

La Salsa - I'm not sure how big of a chain this is, but there's one about five minutes from where I work.  Again, I got the standard chicken, peppers, onions, and cheese wrap, but I was surprised to find it also came with broccoli, corn, and other assorted vegetables.  The thing is, they make the wraps somewhere behind the counter, so I didn't know what I was getting until I took the first bite.  I like the idea of the extra vegetables, but it just didn't taste right.  I'm probably going back tomorrow to try it without all those veggies.  Update:  I went back and got the steak, peppers, onions, and cheese, and I asked for no extra vegetables.  The end result was just ok.  My rating stands. 
My rating:  3/5 stars