Hi guys wich is best to buy from?

Build your own with parts from newegg.com

no exp with building and don't want to risk it

There's plenty of builds to help you out included a very good one right here on tom's:

http://www.tomshardware.com/forum/274745-31-step-step-g...

You won't learn till you do it. Its easy and there's virtually no risk if you follow the guide and be careful. You also get a much better computer for your $$$.

If you can build a IKEA desk you can build a CPU

i understand that but for argument sake which is better?

bad question, depends what your buying

You don't have to build your own if you don't want to  

The absolute best option is to choose a reputable local builder. Someone with a shop and a rep, that supports many small businesses and can back their work with a warranty.

Take such a builder a list of parts approved by us here, and insist those parts are used. This way you have a local place to take your PC should it develop problems.

As far as the big custom builders, I don't know. Many use Cyberpower
http://www.cyberpowerpc.com/

i know it can be a tough question. the honest truth is i don't know any good place to take it to, my cousin use to do this but now he is so busy it's not even funny