I was thinking of a MacBook Pro. They have better specs than the regular MacBook and I've heard good things about them - except for the fact that a bunch of extra cords are basically required now, depending on your usage.
Yeah, I've heard that they're light and very portable, and that their battery does last longer. Software wise, I have been told that everything is superior to Windows and things look and feel smoother all around. I've read that Macs do more with less, in terms of hardware, as in everything is made to work for the hardware, so it won't really feel slow.