In reply to The Lemming:
I'll get the ball rolling:
Prophesy of Drowning on Pabbay. It's a good route for sure but it's not exactly amazing. It's the one everyone wants to do, probably because it's the one everyone has heard about it - the hype becomes a self-fulfilling prophesy as it were. The best thing about it is that it goes up next to the Great Arch, which IS an amazing feature. One of the best E2s in the country? I don't think so, it's barely E2 for a start. May be it's the soft grade, I was expecting a fantastic E2 and got what felt like a decent E1. I thought Sula on Mingulay was better, with thoughtful slab climbing followed by jugtastic roofs.
Moonraker on Berry Head - an amazing cliff but this misses out on the steep stuff and is just a wandering crack line, quite dirty and scrappy in place. Worth doing but not really a three star experience. Well, may be it is if it's clean. Dreadnought next door is amazing though, admittedly a tad harder.
Suicide Wall on Bosigran - expected a lot more of this, the best pitch is the bold 5a traverse, whereas the crux is a polished two move wonder and the whole route somehow lacks consistency. Lots of better routes on Bosigran - Bow Wall at a similar grade is much more memorable!
Coronation Street in Cheddar - it does have great positions on the upper pitches and the climbing is good but not fantastic. The cruxy bits are quite short lived and the rest is just enjoyable.
To be fair, I'm hard to please these days...
Oh and a lot of gritstone classics, they are so forgettable that I can't even remember most of them!