In reply to Rick Graham:
> Any other contenders?
G4 - yes, no easy way up, many attempts, many failures
Baintha Brakk (The Ogre) - quarter century to get a 2nd ascent despite many attempts
Nameless Trango - no easy way up without hard rock/aid (whereas Great Trango Tower has an alpine route up it)
K7
There are dozens of biggish peaks in the Karakoram that would be contenders but they never get attempted so it's not comparing apples with apples. e.g Hachindar Chish, Sosbun Brak,
There are others that are hard but made impossible through red tape/politics e.g Masherbrum is hard from three sides but the original easier route is off-limits.
PS.
- Ulvetanna in Queen Maud Land, Antarctica, has a relatively easy way up the 'back' side that was the route of FA. Mostly snow and ice with a relatively short rock step, not bigwall climbing.
- the Ragni route on the west face of Cerro Torre got around 100 ascents in a day a few years ago, so I think it's fallen off the list, unfortunately.