I recommend the MBA
I got my MBA last week (entry-level 13", that is: 1.7 GHz i7, 4GB RAM, 128GB SSD, Intel HD 3000 w/ 384 mb shared RAM), replacing my 2010 27" iMac (2.8 GHz i7, 8GB RAM, 1024 GB 7200rpm hard drive, ATI Radeon 4850 w/ 512mb RAM dedicated).
To a university student like me, the mobility is definitely worth the technical downgrade, and for standard tasks like browsing and Office, I claim that it actually feels FASTER - undoubtedly due to the SSD hard drive.
I saw a Youtube video comparing the Pro and Air, among other things in relation to iMovie performance (
http://www.youtube.com/watch?v=dY9elSeTM6g ). If you do video editing as a main task, having a fast processor (like the Pro has) will probably be important to you. Because I edit video quite seldom, I would rather be happy from the reduced size and weight every day, than happy from faster video-editing performance every once in a while.
I had a lot of doubts before choosing my 13" MBA over a 13" MBP. Maybe this summary will make your decision easier:
Air advantages (13" entry-level):
- Higher-resolution display (the 13" Air display is equal to the 15" Pro display)
- Faster hard drive (SSD comes as standard)
- Lighter
- Thinner
Pro advantages (13" entry-level):
- Faster processor
- Better webcam (HD on the Pro)
- Bigger hard drive
- Cheaper
Equal in these aspects:
- Battery life (both are rated at 7 hours)
- RAM (both include 4GB of 1333 MHz DDR3 RAM per standard)
- Graphics
- Backlit keyboard
- Equal sized trackpad and keyboard
Comparing the 11" and 13" MBA, the price difference just does not make sense. The added cost of the 13" not only gives you a bigger screen, a faster processor, 2 hours of extra battery life, it also
doubles the amount of RAM and
doubles the hard drive capacity. This really is money well spent if you ask me, and the 13" MBA is still unbelievable light.
In conclusion, if you do video editing or gaming, the faster processor may make the Pro the best choice. To everyone else the reduced size, weight and faster hard drive of the Air makes this a better choice, IMHO.