So, here's the deal: I've never played a Call of Duty game before. And before anyone jumps to the conclusions that I'm biased against shooter games, let me assuage your concerns by saying that I love shooter games. My first computer games were shooters (Doom, Quake, Unreal, etc). Today I own and play CS:GO, Bioshock, Bioshock Infinite, Borderlands 2 and TPS, Metro 2033 and Last Light. I'm playing the pre-alpha of Unreal Tournament, for crying out loud! I love shooter games. So, there is a huge section of the gaming public whose experience with them ends and begins with Call of Duty, with which I have no experience. I'm now wanting to dip my toe into the CoD pool. But, given that, which is the best one to get, considering the comparatively small selection of titles from which to choose? And, more importantly, why? From a technical standpoint, one thing I would like to know is which CoD game will run consistently at a minimum of 60 fps on my late 2012 iMac with 512MB Geforce 650M GPU? One of the things I like about Counter Strike is that it runs 100+ fps, maxed out, so that fluidity spoils you. I understand that the reason that works is because of the age of the game, but to be fair, most of the CoD games for Mac are of a similar vintage. Thoughts?