if i really need to use it as main computer, i would go for 15'' at least
without external monitor and exclusively for home use, neither one nor the other would substitute 15-17'' laptop
Refering to your conlusion I have to disagree. Sorry, but I went from a fully expanded version of a 15" windows laptop, where I had a problem with my back and couldn't fit it in my bag, a had to use a backpack.
I bought a mbp 13" and still after so much use I have a problem with it. I't still too heavy. So after some research i'm going for a mba 11" and a maxed out mac mini connected to a tv.
i would advice for those people who are still unable to decide between 11 or 13 either:
- get 11 if you have external monitor and another 15+ laptop / computer
- get 13 if you haven't any of them
but I have to admit that the 1,6kg 13" mba looks promising with a 8gb ram chip and a 256gb ram. This one thing to think about.