[achompas]

Some people swear by their 15", while others (like me) have traded a bit of screen size for some portability.

There are two major differences between the 15" Pro and the 13" Pro: monitor options and computing power. The 15" is obviously more powerful, but you can also add a higher resolution, anti-glare, or both to your screen. These are non-trivial costs ($150-200 each, I think).

The 13" Air is the ultimate in portability, and people love their performance so far. I ultimately went with the MBP, though, b/c I use my laptops for years and questioned the Air's non-expandable RAM (4GB max).

[ja27]

I went with the 15" MBP with the screen upgrade (1680x1050 and anti-glare). To me, the extra vertical pixels are a big plus when coding or writing.