On top of that you’re giving up mouse + keyboard for dual analog? O_o
Trust me, I’m not pulling this out of my ass. The reason I’m switching is because I can actually SEE the difference from when I play at my PC to when I go play PS3 at my friend’s house. Also, I’ll be able to play with my friends more often; none of them are PC gamers.
And yeah, I know. Making the switch to dual analog really gave me the challenge, but it’s really not that bad once you get used to it. If you can get accustomed to a high sensitivity it gives a lot of potential when it comes to sniping and snapping to other people.
If not I can always get 
this.
I’m just saying, most people have their router set up near their computer while the console is sitting in the living room way away from it. I think the difference you’re seeing is because consoles usually restrict who you can connect to to those within your own country/region whereas on some PC games there’s no restriction on who can play who. Basically, if you’d try a game with dedicated servers (*cough*not MW2*cough*) or one with a decent online setup, you’d see the difference.
Dual analog is inherently inferior to mouse + keyboard. Too slow, too imprecise, too unnatural. That link does look like a decent alternative, though.
Switching for friends I can respect. It’s always more fun to screw around with people you know than random strangers.