I'm partial to BiClyFri myself, but as I won't be attending I'll let you folks decide. I saw them at Reading a few years ago when they were already huge (those Englanders really know their music, hey?) and once is more than enough for me.
If by some miracle I do make it into the fest for BiClyFri I'm going to bring extra shirts to throw at them. And yes, I realize this goes against my "don't throw shit at people on stage" stance, but in this case it is warranted.
Related: what's the over/under on how long it will take for them to remove their shirts? Or will they just take the stage half naked?