It's heresy, but my favorite laptop was a 17" Macbook Pro with Bootcamp.

It wasn't my favorite, but my first Mac was a PowerBook G4 17-inch, which I ran Gentoo and (I think) Yellow Dog Linux on at various times. It never worked super well, and I eventually joined the dark side. In 2003, a 17-inch laptop was ludicrous among all the netbooks that seemed to be the future of laptops. People around me called it the "aircraft carrier Mac".