In reply to Offwidth:
I think several of the VS around Thrombosis (although my notes say i didn't find Thrombosis too bad) are hard I particularly remember Needle Crack (N Route) and Rigor Mortis being hard.
Hardest VS is the peak I've done I can't remember but it probably one of the VS 5b I've soloed. I guess different routes feel hard to different people (or even the same person) depending on which day of the week it is, what you had for lunch, who your climbing with, what you 2nded earlier etc.
Stuff I do remember being hard are but could be be because of any number of the reasons above:
-The File (led/2nded 5 times and it only seemed easy the day I did the Rasp)
-Alter crack but i've only done it once i think is on my list of things to do again...
- Flash Wall on Kinder
- Green Parrot @ Bamford and any number of other boulder problem like routes. Eg the Curse, Ding Dong etc
- Gunpowder crack & Curving crack @ Bamford
- Straight Ahead at Stanage plantation
- Loose & dirty limestone routes like Frore @ Ravensdale
- Doctor's Saunter @ Stanage End
- Grey Face & Calver Wall @ Curbar
- Left Broken & Downes' Crack @ Froggatt
- Excalibur @ Lawrencefield
- Dowel Crack @ Burbage south
- Obsenity & the Stomach Traverse @ Burbage North
- Fairy Nuff @ Standing Stones
- Coffin Crack @ Wimberry
- Rainbow Crack & Reunion Crack @ Hen cloud