I got the top-specced Air last year, and it has handled everything I've thrown at it (and I tend to be very demanding of my machines). I highly recommend it. Pair it with a 27" screen and you've got a great setup.
In your opinion, this is just some advice I would like please.
I use transport , cs6 and sublime
So would an Air be sufficient and recommended for me to update site code , create stuff etc. Or should I go for MBP
I like the Air, but have always wondered if it was just a non turbo version of its bigger brother. However I dont do gaming, or high end graphics. So would just like some advice.
Are they only in 13 inch screens? Do they have retina ?
Or do ppl generally just hook the air up to Mac and use via a monitor, which I dont see any advantage, other than convenience.
Assuming by CS6 you mean Photoshop and/or Illustrator, then yes - I run those programs with a whole bunch of other programs at the same time, and the Air never misses a beat. If you're streaming HD video + running heavy programs, the fan will start cranking and it gets hot, but it's never really been an issue.
If you're doing video rendering ( After Effects CS6 ) you should grab a Pro. I can render video on the Air, but having the processing power of the Pro would decrease the render time by a lot.
The Air comes in an 11" or 13". I don't think they've introduced a Retina Air yet. I like it because I like to be mobile and the 13" screen is great, but when I'm working at home I hook it up to a 27" monitor. For me it's the best of both worlds.
Sounds to me like the 13" Air would suit your needs well. If you want the bigger screen or more processing power and budget isn't a problem, get the Pro Retina. It's thinner than the Pro (kind of in between the Pro and the Air) but with all the power.
Hope that's useful