Host advantage is nothing more than network latency. You have the same latency to the host as they have to you. Furthermore, there are things you simply can't do when you're host, like wall-bouncing.
And here's a real shocker. CliffyB is a
designer. How much do you really think he plays gears, while he's working on gears2? And do you think he really goes home at night, after working on video games all day, and plays video games? He also has to
market gears2. What does that mean? It means appeasing the masses who get raped and like to blame it on 'host advantage'.
Want to know a little secret? If you suck, you suck, whether you have host or not. And many people, myself included, will tell you that we are much more effective when there is just the right amount of lag. Not too much; but still a little bit of it.
That's how we do that **** where we shotgun you while bouncing off walls, see.