QUOTE(D3m0n1k @ Jul 3 2009, 05:54 PM)

THE ONLY DIFFERENCE between the two are the voice and invites.
Let's see. Some of the things Xbox Live has that PSN does not: -
Cross-game voice chat
Voice messaging
A proper invites/join system that works across all games
An up to 8 player party mode
5 voice chat channels, switchable at any time - the game, the party, and 3 private voice slots
Demos for every single downloadable game, instead of demos for about 1 in 5 like on PSN
10 free categorised game video channels
Movie and TV show rentals with HD options (I'm in the UK, and PSN has no movie rentals store here)
The ability to compare games with a friend and not just trophies
Leaderboards built into the dashboard (this is the latest Live feature that Sony are trying to copy)
Xbox Live shows you what game a person is playing and exactly what they are doing in that game
You can prefer or ignore a player which affects matchmaking globally
You can report abusive players direct through the console
You can create dynamically updated gamercards on sites like MyGamerCard.net (Sony are also trying to copy this)
You can click on a friend's profile and view their friends
You can click on a gamertag on a leaderboard and view the user's full profile
In the UK, there's over 210 downloadable games for Live and about 70 for PSN
Xbox Live always gets games, demos and content first and it's usually cheaper than PSN
That's just some of it. There's other bits and pieces, but of course as someone who has extensively used both, I'm sure you're aware of all of this.

QUOTE
Also, the PSN is going to get a major overhaul this summer or fall adding all that LIVE stlye crap anyway.
Source? Oh yeah, you don't have one. Here's some of the things that are confirmed for Xbox Live this summer: -
Last.fm integration, including being able to listen to tunes with friends and people in your party
Facebook integration, including being able to post screenshots from supported games straight to your Facebook page from within the game
Twitter integration
Full 1080 instant streaming movie rentals
Sky TV through the 360
Zune Video Marketplace
A store for avatar clothing and accessories
An overhaul of the Live service itself, with a new dashboard update coming at the end of summer
You're right about facts being facts. You're just not very good at identifying what a fact actually is. The typical response to the list I posted would be for you to list each thing along with "that's useless" or "I don't care about that", but that's just lame so I'll pre-empt you in doing that now to save you the bother. You were obviously quite wrong, so there's no reason for you to argue the point.