I have both, a macbook & a dell PC.
I'm on my macbook right now. I looove it, but it's more for leisure & fun.
I bought it for school, but I've found that since I'm used to using a PC I do most of my schoolwork on the PC, I just use the mac for fun stuff and internet.
I don't have a mouse for my mac though, which totally annoys me. I need to get one.
Macs are reeeally really great though, REALLY easy to use and lots of awesome features.