All brands of laptops today are good. You should also consider the price if its really reliable and good quality. i can suggest to you to look on this site . http://bestapplenotebooks.webs.com/
The best I can give to you is to buy apple laptops where you can experienced the ultimate performance of it and it could really help you in your studies. http://bestapplenotebooks.webs.com/
I can say that laptops differ on its performance and based on my experienced, I think Apple is really good and reliable in its products. http://bestapplenotebooks.webs.com/