I'm a huge fan of top dog for their gourmet dogs, RC cola and interesting politics posted on the wall. Hopefully you get a chance to try them all (dogs and locations) but I wanted to call out that this is a great location with a little more seating than other top dogs, with everything else you'd expect from any Top Dog (all you can drink RC)
Easily one of the best places in the bay area to get a quality dog. The service is always quick and friendly and the quality is always a step above the rest. A favorite spot for locals to hit in the evening and also a fave for the college kids ... this is a place you must visit if you dig quality franks.