Why would the x86 architecture be considered a bad fit for games consoles?

Question

In the numerous presentations and interviews regarding the genesis of the Playstation 4 Mark Cerny said he faced some resistance regarding making the PS4`s cpu based on the x86. He had to convince a number of people,including third parties, that it was "suitable for games".

PC game developers have had no choice but use the x86 for their games for several generations so why would they:

a) need persuading

and

b) what kind of objections would they have?

Answer 1

Best place to find answers was here:

http://www.gamedev.net/topic/652957-why-would-devs-be-opposed-to-the-ps4s-x86-architecture/