which laptop should i buy?

I assume that you want this TB for gaming. Tomer is right. You want the 6GB ram and over a 2.0Ghz processor. However, the 2GB graphics is going to cause problems no matter your memory, hard drive storage or otherwise. Make sure you find out if this upgradable, if not do not buy. 2GB graphics is a standard graphics card and will crash with the higher end games. The Ci5 is behind a bit. Look into newer. In the long run it will be worth the money. P.S. Unless you are saving movies, high end games, lots and lots of data you will never need a TB on a laptop. It's a waste of money that you could spend on the graphics card.

Although I think HP is a better brand, the Lenovo seems. Better in this case.

well i own a brower's labtop from walmart there like 199.99 they last very long and there is a pretected download thing on it so you won't have a verus also the charger wo't brake long last

I would go with the Lenovo. In my experience Lenovo's laptops last longer and in this case the RAM difference- Lenovo's 6GB vs. HP's 4GB can make a big difference in performance.

Apple laptop is one of the best. I think you should buy this.