So it's been several years since I've been out of San Francisco and I'm planning on going back in July, and of course interested in nothing more than an onslaught of Mission-style burritos. I'm pretty sure I've got the hits for other Mexican dishes covered (El Farolito for the Super Quesadilla Suiza, Taqueria Cancun for a Carne Asada Torta, Puerto Allegre for margaritas), but I'm curious if there are any new burrito places that I'm missing. So, may the great burrito debate begin. Which restaurant/taqueria serves SF's best burrito? and what is in that tortilla?