Are Macs Worth The Fuss?

I could get the baseline 15” MBP for £1,455.60 or a beastly gaming PC (http://www.aria.co.uk/Systems/Gaming+Range/Gladiator/Gladiator+VISION+HD+Ultimate+Gaming+PC+?productId=44209) for the price shown there. Both new. I am interested in looking into PC gaming but already have an Xbox & PS3 so I’m wondering if it’s worth the investmen, sreen, keyboard etc. needed. I know this isn’t a tech forum but from my experience this forum just has an amazing community so :D Do any of you have experience of macs/gaming PCs, good or bad?