Melee isn't based on Lag, while ranged is 90% lag and 10% percent.
PvP in this game is so F'd up it's not even funny. Again, it's based on connection and how high your skills are. Not "skill" in the least.
1. Some of us do not lag.
2. lolMabinogipvp
Elven ranged combat has the highest potential DPS in the game. This cannot be argued (0.28 second Final Magnum/1.1 second Final Crash). Human ranged attack is more reliable but provides less DPS potential.
Melee easily controls max damage. Weapon bonuses alone (Elsinore+Ego Broad) beat ranged combat's potential damage. Plus you can deal much higher damage if supported by a ranged character. Windmill and Full Swing are extremely versatile unlike the hard-hitting but situational Crash Shot.
Melee has better end-game potential than ranged combat right now but a slew if new skills (to include ranged weapon masteries) should largely balance this.