Combat in general needs to be further fleshed out before we really start discussing how to best fight each other. But that’s just my own opinion.
Right now, there really lacks much versatility in combat, and in most cases combat would be decided purely based on health stats and weapon tier alone. Further more, the wide discrepancy between players with talent points in combat and those with none creates a tremendous gap in combat potential. A single player with full point investment in combat and health/resistance and even fundamental pvp skills could likely massacre any other profession 10 against 1. The simple fact is that the game lends itself poorly to fair pvp play on a large scale.
Small scale pvp could be viable however. Arena zones and duels seem to be viable. Though I would personally prefer to avoid full blown pvp planets.
I certainly would not encourage winner loots the dead type mechanics, as this can make a single death completely ruin a players ability to fight back after respawn. Basic equipment damage should be loss enough. Putting too much reward incentive to killing another player fosters a toxic game play style that goes directly against the intended community experience.