Most overrated U2 song: With or Without you. Still one of my favorites but... still overrated.
Most underrated U2 album: Rattle&Hum or Zooropa
The whole R&H project, while widely criticized as too over the top and excessive at the time, and pandered by many, is a great album and film. Yes some of the blues/Memphis stuff is deserving of some slander but Desire and All I want Is you are two of their greatest songs. Zooropa is a classic but many don't like this one very much either.
Most overrated U2 album: The Joshua Tree. It's one of my favorities but I don't think it's anywhere near their best. This has always been the crowd favorite.
First U2 song you ever heard: Sunday Bloody Sunday when I was very young on MTV. I remember watching the video for this from Red Rocks when I was quite young.
First U2 song you heard and loved: Streets. I was old enough then to understand what this band had in them.
All-time favourite U2 song: Stay(Faraway so Close) although several others are right there too.
All-time favourite U2 album: Tie between Achtung Baby and Zooropa. I was so engrossed in U2 at this point in my life. Was also the first tour that I ever saw.
First U2 album you owned: The Joshua Tree
U2 albums you haven't got (yet): Got them all and countless boots of shows.
Favourite U2 era: ZooTV. Achtung Baby and Zooropa. The best.
Least favourite U2 era: I don't think I have one. I liked Pop a great deal and thought it was one of their best tours. But then again, I also felt that way for every tour I've seen.