I want a reliable, fast and good for value computer, can anyone suggest some?  

I have been thinking of a good computer that will last long, is good for gaming, runs fast and looks great. My friends have suggested me either alienware, mac pro, or just a dell computer.
Alienware looks incredible, sounds incredible and looks like a very good computer for gaming and is quite reliable. But when i went to check the reviews of Alienware computers, there were some bad comments about the fact the Alienware is really expensive and not worth the price and that their customer service isn't great.
I don't personally like the setting ot of mac pros, but they sound and look good aswell.
Dell computers don't interest me too much, they don't seem like a brand that would stand out to have really good computers.

Can anyone suggest me which computer i should get, or what other computers i could get? thanks guys!