Whats a good experience rate on pvp?

[samih95]

What do you think is a good pvp rate?

I mean this rates

rateExperienceFromPlayers = x
minLevelThresholdForKilledPlayer = x
maxLevelThresholdForKilledPlayer = x

I think you should get some exp for killing an lower lvl, like this:
Lvl 120 kills 110 = gets exp, but my question and the point with this thread is how much should it be?
lvl 120 kills 200 = much exp but how much?
Lvl 120 kills 80 = gets NO exp!

So what is good rates? Fill it in and motivate your answer!