It really depends. Some Liberal art major student will satisfy with the most basic laptop or even a 3-5 years old used laptop, becuase mostly they do is typing paper, and facebooking. (no offense if you are going to be one.) But if you are a Computer Science, or Engineering student, they probably need to use the laptop for drafting, AutoCad or things like that, and they need a high end computer. So.. it's really depend.
But overall I would suggest to buy a Dell, with the Intel processor, dont get the AMD, coz 5 out of 6 of my fd use a AMD laptop have overheat issues and coz the laptop to froze or even damage the CPU.
They are very reliable, they don't have all those fancy preinstall on your computer to slow it down. ( I personally using a Sony laptop, and it got all kind of fancy preinstall, which is no use at all. I end up need to get rid of the preinstall and install a new window myself which is suck, time consuming)
Apple will not be a good buy, coz they are not compatiable with all the computer at school. I have fd using a ibook and make a powerpoint but since the school computer don't have quick time, so none of his picture and chart show up, and he end up fail this project. honestly it could be a more stable station, would you buy a more stable computer but you need to go back to school and use the library to type paper or powerpoint? Your call.