Professional American Sports Fan Bases

Keep in mind, these are my personal rankings based from my observations and experiences.

Overall Best
1. Green Bay Packers
2. Chicago Cubs
3. Boston Red Sox
4. Boston Celtics
5. Calgary Flames

Overall Worst
1. Los Angeles Dodgers
2. Oakland Raiders
3. New York Yankees
4. Philadelphia Eagles
5. Atlanta Braves

Most Optimistic
1. Portland Trailblazers
2. Seattle Seahawks
3. Los Angeles Lakers
4. Detroit Red Wings
5. San Diego Chargers

Most Pessimistic
1. New York Yankees
2. Chicago Cubs
3. Detroit Lions
4. San Jose Sharks
5. Dallas Cowboys

Most Loyal
1. Chicago Cubs
2. Boston Red Sox
3. Green Bay Packers
4. Portland Trailblazers
5. Detroit Red Wings

Biggest Bandwagon
(Majority of Fanbase, not the usual amount following championships)
1. Seattle Seahawks
2. Tampa Bay Devil Rays
3. Chicago White Sox
4. Anaheim Angels
5. Milwaukee Brewers

Most Likely to Show Up
1. Green Bay Packers
2. San Francisco Giants
3. Dallas Mavericks
4. Portland Trailblazers
5. Calgary Flames

Least Likely to Show Up
1. Florida Marlins
2. Oakland Athletics
3. Oakland Raiders
4. New York Knicks
5. Kansas City Royals