Part of the problem is the bounties. I can earn a double XP stream through Eris and Vanguard and do at least 5 bounties in 30 mins. Easy XP. Crucible bounties are just too poorly supported by XP due to them being XP matched with Vanguard for no apparent reason. Now PVP has some easy bounties: kill 25 hunters, win 3 matches and so on. But some bounties are really, really time consuming and some are almost impossible. Dead Man's Hand will just take days of PVP to do. It should be worth 20,000 XP not 5000. First blood, post mortem, enforcer, 20 melee kills: all of these should be worth 10,000XP, as they can take a lot of time to complete and rely on skill and luck to some degree. Which is the key point, most PVE bounties take no skill whatsoever. But most PVP bounties require at least some skill, and some require a lot of skill.