A power ballad shouldn't bore you, it should make you want to secretly weep whilst punching the air. The following power ballads bore me to fucking tears and I despise them for it.
KISS - I Still Love You
Bryan Adams - Everything I do, I do it... blah blah
Cinderella - Nobody's Fool
Guns 'n Roses - November Rain
Guns 'n Roses - Estranged
Guns 'n Roses - in fact ALL the long shitty power ballads on the UYI albums
Scorpions - Still Loving You
Metallica - Nothing Else Matters
And although Aerosmith ballsed up their career with all the sodding ballads, their ballads aren't actually all that bad, they're better than most. Tyler has an artful way with a middle-eight, see The Reason a Dog from Done With Mirrors or Hole in my Soul from Nine Lives.