VM now likes spinning on hill climbs; how about you? Which is a better technique?

Real Cyclists

Angono Rizal  PHL   |  September 8, 2013

VM prefers the Alberto Contador (or LA) style of climbing.  They use low gear and spin a lot. I see Joel and Val employ this technique.  They do this so that the legs do not tire easily with heavy gears.  VM said he did the Mambog climb at 28 kmh doing spinning.  And the Bugarin ride, back and forth was done quickly doing only spinning.

Long legged giant like Ullrich prefer heavy gears.  Some cycling books prescribe heavier gears for long climb because they say it is more efficient and less tiring?

Which do you prefer?

                                  Recyclists starting Bugarin climb (on low gears spinning?)

                                VM and Nanding;  Nanding did not proceed up;  he stayed behind

                               Choco2 and Angel

                                  Albert V and his Argon carbon bike

                      Jorgeus biker with Laguna Lake in the background, tnx Richard for the photo