Tough one. I would say Bulls fans though. They were still packing that place even when they were losing 60 games a year, knowing full well they wouldn't win more than like 30 in a given year.
You post on Spurstalk, and you really think Spurfans are the most loyal?

Way too many less bandwagoners on this site to make me ever think Spurfans are loyal as a whole. They lose a few games in a row and a bunch of people start making threads and posting about how the team needs to go into rebuilding mode and how Duncan needs to retire and Pop needs to be replaced.