My opinion, some of the worst are Buffalo with that ugly, oversized red stripe through the Buffalo. Not sure what you can do with a Buffalo to make it look good.No matter how you look at it the current on is an embarrassment
As a matter of fact, there is no worse logo in the league
Cleveland because it's just brown. Chicago, Green Bay, and the Giants lack in creativity. Especially the Bears. Why wouldn't you have a Bear on the helmet?
Pittsburgh's one side logo is odd.
But, hey, it's all subjective.