The only people who say Halo takes more skill are the players who suck at CoD. Just like the ones who say CoD takes more skill are the players who suck at Halo.

Personally, I don't give a flying rats ass for which game takes more "skill". I play the game that offers the most fun and CoD wins by a landslide.

I'm good at both COD and Halo and I personally think that Halo 3 takes more skill then MW3 for one the true skill system keeps you against players who are on your skill level, also the most "op" gun on halo 3 took 3 perfectly placed bursts to get a kill (Battle Rifle 3 shots ftw) while Mw3 you dont even need to aim and can kill people in damn near an instant

Each game requires its own level of skill, neither takes more skill than the other. Just a different skill set that not everyone has.

Same as with core and hardcore in this game. Neither is harder to play, nor does either take more skill in truth.

People just like to through about the 'skill' word to make themselves sound good and to feel good about the time they wasted playing a video game.