People have asked me that if they were to check out U2, what albums would I have them listen to first. I did a sermon at my church on U2 music and that seemed to inspire a lot of people to check them out, especially since I had a talented singer sing Streets and another musician played Miracle Drug and Yahweh during the service with his acoustic guitar. It was all pretty great.
Anyway, I did have this really good play list that I was burning to CD for people... but I lost the play list when I had to redownload iTunes to a new computer. But I thought it had a really good mix of popular songs which I got off of each one of their albums, plus I added a few unheard of ones (ie, Scarlet) just for fun to try to pique one's interest beyond the probably more often heard tunes.
I tell people to listen to TJT first when they ask because I figure it has the most recognizable songs. People want to recognize things they know first. I have told them to try AB after that. It's really kind of hard to direct people on this kind of thing...