I think the PCS ranking does a pretty poor job at this actually, and if you filter retired riders it becomes clear why:
- Valverde 1805
- Sagan 1284
- Rebellin 1090
- Cavendish 1089
- Gilbert 1061
- Greipel 1003
- Nibali 943
- Froome 909
- Roglic 806
- Kristoff 788
- Van Avermaet 757
Very clearly biased towards sprinters and to an extent also cobbles specialists, which suggests GC results (and GC wins in particular) are being underrated, and stage wins (and maybe also classics placements) are being overrated. No ranking should have Greipel ahead of both Nibali and Froome. Valverde sitting at double of Froome's score is also very obviously wrong.