Ah, the endless debate..

I think it mostly depends on your major. Engineering classes may use a lot of CAD software, which as far as I know is not supported by Apple. From looking around campus, you see the management, liberal arts and psych majors using macbooks and all that. Most of the Engineering students use Dell.

Then again, all the computers in the library and your computer labs in your major building have the software there for you..

Macs are sleek and nice, but the aren't worth the pricetag to me.  Besides potential compatibility issues, macbooks are not water resistant--my freshman year roommate fried hers with a water bottle. 

I know what you're thinking "Duh, it's a computer.  Electronics and water don't get along."  Very true, but both myself and a few other Dell owners have spilt water on our laptops and were able to power it down fast enough to keep it from short circuiting.  And after we were sure they had dried, we booted them back up & they worked fine. 

There's some random, anecdotal food for thought.