Basic PC or Xbox 360?

I won't buy gaming PERSONAL COMPUTER because my parents don't want Maine to buy, they do not want to become spoiled.

PC Specs:
4 GB RAM
15.6
500 GB
Intel Core i3 2.3 GHZ
NVIDIA GT540 NEAR 1GB DEDICATED VRAM

I have reasons to buy laptop to play League Of Legends,,Dota 2,Heroes Of Newerth and Team Fortress 2

and I have also reason to buy xbox 360 to play call of duty,battlefield,radiance,gears of war and borderlands 2.

What do u think is more enjoyable?

I am just a second year highschool guys. 15 years overaged.

Only we shall buy gaming pc aft this one year if I bought a laptop or xbox 360.
Should I buy xbox 360 to w8 the gaming pc?