I've always looked at ROAD ATTENDANCE as the only true way to judge Most popular Team.
Based on Attendance here are your winners:
#1 = Oakland Raiders (74,376 2005 avg. road attendance)
#2 = New England Patriots (73,356 2005 avg. road attendance)
#3 = NY Jest (72,840 205 avg. road attendance)
FYI...Pittsburgh ranks 15th
But I guess a poll of 1,100 people is a way to find out as well.
You'd have to look at it in terms of percentage of capacity, not just look at raw numbers.
If you play in a division with a bunch of big stadiums that are always sold out you get credit for ROAD ATTENDENCE whether any of your fans show up or not.
Merchandise sales is where the fans vote with their money.
SD