consoles are technologically better than pcs at the beginning of their life cycle. This has been the case since the mid 90's.
The guy who said xbox 360 can only be played on a new tv - i think he meant hi-def. I dunno if it even supports hi def tv, what kind of discs will the games be on? I know for sure the ps3 has an hdmi output as well as regular ones.
Microsoft said they are making/have made a dev kit which makes it a lot easier to port games ffrom xbox to pc and/or vice versa.