When I am playing PvP, I find it overly difficult to tell your ranking among the players you are currently battling with. You have to closely scan up and down the list of players to try to find your name -- something that isn't easy to do in the middle of a battle.
There should be something to easy differentiate your icon from all the others -- Some way of highlighting it, so that you can see your ranking with just a quick glance.
I just take a quick look through the list when I'm in the repawn queue. But still, this idea would be much appreciated. Nothing which has the potential to cause lag though. Just, maybe a brighter pallette for you, and a larger box for the leading player.