and can tell me how they feel about it and how long it would take to design a game for example god of war.

depends on how many people are working on it and the experience of the team, also what work process they are using and how the organize their development flow. Kinda hard to answer with no information.

it depends how much money you have.

I havn't read this, but it looks pretty relavent http://ie.ign.com/articles/2013/04/02/is-it-worth-doing-a-degree-in-video-games