Well, there seemed to be two camps debating loudly over the Internet as to which is the better choice - a MacBook Air (MBA) 11" or 13". These are my thoughts. Some background. I come from using a Windows notebook for years, notably the Lenovo ThinkPad. A few years ago, I used a T400, a 14" power horse that runs at a resolution of 1440xsomething. It was a pretty good machine. But I hated it. The reason I hate it was its weight and size. It's not a big monster, mind you. 14" at that time was state of the art. The weight, though, is a killer. I decided to ask for a change. My company changed it to a X200. The X200 is noticeably lighter but I have one reservation. I am not sure if I could accept the smaller screen and smaller screen real estate. The X200 has a resolution of 1280x800. I use Excel a lot. Can I see my whole spreadsheet? When I finally got the X200, I thought it was the best ThinkPad I ever had! Best ever! It was so light at 1.5kg. The 12" di...