I think Allman Bros are overrsated. I find their vocalist (is it regg) to be, i dunno, just sounds weird. SOme great songs like Jessica and Statesboro Blues, and some cool live work, but I dont think they compare to the Band.
U2 is good pop/rock music. Its incredibly catchy. I cant help it, its good music. Again, I'd pick U2 over the Ramones. I choose based on, if i could only listen to 1 of these 2 bands for the rest of my life, and based on that definately U2. Theyre being inducted into RHOF soon.