I'll take willy's over moe's any day of the week
HOWEVER
I will say that Taqueria La Fogata on Hwy 41 (connected to a tire stand/gas station, next to interstate battery, north of barrett) is the best burrito i've had in the US, and better than most of the ones i've had in various places in mexico.
Make sure you bring cash, can read/speak a little spanish, and order the super burrito with chicken....you will thank me later