Im going with warlock.
Reasons:
Huge melee reach
Self res
Shield on hit
Cheapest grenades
Blink (i know hunters have it too)
Cheap exotics
Just in general easy to use
Personally i think warlocks are the most handheld class in the game with how bungie designed them.
Also i main a titan and i give credit to hunters. Gunslinger has nothing good/useful besides the super itself in pvp. But yeah like i said warlocks are the easiest to use
Surprised i haven't seen that much "master race" comments
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Yeah I agree with warlock the abilities don't require really any skill... But hunters have chain of woe and knife juggler that rewards skilled play. And Titans have to put themselves in the fray to trigger FoH