[...]
(1) Monuments
(2) Other Classics
(3) World Championships
(4) Giro GC
(5) Vuelta GC
(6) TdF GC
I'm sorry, but that's ridiculous. I appreciate the argument of Sagan or Valverde over Froome (with Valverde especially I think there's some unconscious anti-Spanish bias going on with some, me included, in an english language focused forum), and certainly Nibali (all 3 GTs, numerous GT podiums, monuments), Gilbert, Cancellara and Contador are also legends of the sport - what a decade it's been, eh!?
But valuing the Giro and Vuelta GCs over the Tour and even apparently something like FW or CSS over the Tour is a joke. How many people even lets say watching on the road side during the Tour of Flanders do you think could name 3 out 5 of the last winners of Fleche Wallone vs the winners of the TdF since 2010?
Hardly. We're specifically speaking of 2010-2019, yes? I stand by my assertion that both other GTs have been more exciting and better exempla of the sport, in aggregate, during that period.
Fine, but this poll should still be an attempt at being objective. What race was more fun to watch as a spectator doesn't mean much. I enjoy MSR a lot more than LBL, but I would look like an idiot to most claiming MSR is more valuable.