Originally Posted by MRK90
In that case it's easy, i will just stick with the air, if SSD makes it that mighty..
The i5 2.4GHz benchmarks at 5500 in Geekbench and the 2.13GHz Air gets 3300 so you get 70% better performance from the i5 CPU.
The 330M is 50% faster than the 320M GPU so if you were running a game and the 320M gave you 20FPS, you'd get 30FPS on the 330M. Almost always you can lower the settings a bit though and get smooth performance. With 3D apps, you can go down to 5FPS anyway for modelling.
The Macbook Air SSD benchmarks at 160MB/s transfer rate whereas a hard drive gets 50-70MB/s at best.
You will appreciate the MBA weight when carrying it around. The MBP doesn't seem like a lot but you will notice it on your back.
I don't think 128GB is enough storage though, Windows partition will take 20GB at least and the Mac system + apps should be 10GB minimum so you will get under 100GB usable space. At CES on Jan 6th 2011, Intel should be introducing their 25nm SSD, which should double SSD capacity for the same price so buying an SSD now isn't such a good idea.
If you have to pick one, I'd go for the MBP now and have a look at what's on offer late 2011. Intel should be bringing quad cores to the low-end with Ivy Bridge, SSD will be affordable and NVidia will be on their next IGP revision. I'd say at that point buying a MBA vs a MBP would easily be in favour of the MBA.
Right now, the MBP would IMO be the better purchase given that Core 2 Duo is an old CPU, 128GB isn't that much and USB 2 isn't a fast connection and it's all you get. Light Peak and/or USB 3 will be great additions in the near future and won't be readily replaced.
It's actually not a good time to be buying a MBP as they are due an update soon. Sandy Bridge is being launched in 6 weeks or so. I expect new MBPs to arrive late January.
I'm hoping they restyle the 15" MBP to be like the MBA and go with a 256GB and 512GB SSD option and drop the optical drive.