Well, having just (barely) finished two delicious fish tacos from Real Taco, I have to say it again. This place makes the best in Boston. Crispy, battered cod, crunchy cabbage, and chipotle dressing, all wrapped in a warm, double-layer corn tortilla. I've only been to the location downtown at 86 Bedford Street, around the corner from the Good Life, but the owner (who is from Mexico City) has also opened two other branches, one in Cambridge in Harvard Square and one on Winter/Park St. I can't speak for the other locations, but everything I've had here is good though my favorite is their Baja Taco. Make sure to try the variety of fresh salsas they make every day. I've tried El Pelon's but I think these are much better.