New Orleans, Houston, Seattle, West Coast, Pass Balanced, and New England are all popular around here. Depends on what style you like. New Orleans, Houston, and Pass Balanced have the Strong Close Off-Tackle play, which is very good. West Coast and Seattle have Far Tight Twins, which has a very good toss play. New England and New Orleans both have great shotgun formations. I've heard Atlanta is good for running, and Detroit has been getting some attention recently.