Which is better -- Subdomain or Subdirectory

First off, I'm not resorting to personal attacks or insults. And there's also no need to apologize for posting here either. Now, what exactly is it that you are disagreeing with? Rather than resorting to insults, why don't you just tell me what it is you disagree with or want clarifications on so I can tell you?

 

sub dir is better without any doublt.. + google does class it as a seperate domain, but only vaguely.. google for site:google.com and first result is video.google.com
I've done test's aswell and subdir = better than subdomain which in turn is better than ?page=home (in my tests anyways)

 

psp.domain.com/downloads/free.html with a page title of "free psp downloads" and similar h1 is better..

 

This is a silly debate really. You should make websites for people and not search engines. So while a subdomain might be better for seo, I'd only use it if it was a completly separate and fairly long section. Otherwise it's a sub directory.