Doesn't mean they're not fun.
OK:
80's U2 definitely beats 80's GnR. AFD was a great record, and lies was meh, but compared to U2's amazing 80's catalog, this is small beans.
90's: U2 wins again. UYI 1 & 2 were great efforts but AB, Zooropa, POP, Passengers and MDH - sorry, doesn't compare.
00's: U2 wins again, but only because in among the weeds of their two worst records were some excellent songs and great tours. GnR had .....Chinese democracy.
U2 by three decades to nil.