I dunno, I'm pretty happy with my thinkpad. Even if I could run Linux flawless on a macbook (which you can't unfortunately) I'd still take the thinkpad hardware over a macbook.

A macbook air is 1.25kg, and my thinkpad is 910g, and I can really feel that difference. The thinkpad keyboard also feels ever so slightly better too... and Linux working well is worth more than pretty much anything else.