I saw this on the BF2s.com forums last year and thought it was pretty interesting.

If you go to your stats on BF2s.com, find the percentage of your total kills attributed to weapons. To do this, find the "Weapons" section on the right and hover the mouse pointer over the Total Kills number at the bottom of the section. It will give you the % kills by hand to hand combat weapons. You can do the same thing for vehicles. If the percentage of weapon kills is over 50%, then you are more of a ground pounder. Vehicle kills over 50%? Vehicle ho. More than 50% as commander? I'm not going to dignify that . Don't worry about overlap between the two (percentage over 100% due to shooting someone with a weapon from a seat in a vehicle).

At 60% weapon kills, I lean toward the ground pounding side of things (though not by much). Most of my vehicle time is in armor. What about the rest of you guys & gals.