13, 15 or 17" ? The 13" now getting the "pro" label will no doubt attract a lot of people away from the ordering the 15" and it will likely sway some MacBook Air lovers due to the increased power available. Aside from the technical glitches that the pro's here are concerned about, such as the 13" having 1.5 sata instead of 3.0.. aside from all that .... Which size MacBook do you prefer, and why? For me having once had a 15" MBP and the revB MBA I've decided the new 13" MBP with ACD is the best system for me, this way I can do ALL my work on ONE computer and have the all the power and portability I need.