Pings don't always indicate better players. Sometimes when I had bad pings, nobody could hit me. Couldn't hit them either, but thats besides the point.
In any event, direct confrontations should always result in 1:1 kill ratios...according to the law of averages...provided you both have the same weapon, aim at the same spot, fire at the same time, and have identical pings.
The above situation only applies to direct confrontations. The game depends on you knowing locations to hide, when to throw grenades, and to move properly. You will notice good players do not get into direct confrontations. The odds are too difficult. They will move and shoot. Aim for head shots.....crotch shots, though painful are not fatal.