Hello, everyone!
That thing whit the auto loot is just making the game so easy. Shouldn't be like that... This mean fast farming , fast farming means alot of mats for profs and etc, which means economy is ruined. Because there will be no challenging content.
About the dungeon looting, should be as the owner said. Each raid specify their raid loot system "free for all", "master loot" and so on. This add another level of difficulty building your BIS.
Of course this is my opinion, but the games you say are no longer interested by gamers, the right template is World of Warcraft. They have shown us what people like, and you guys should take the best things of it. I know its stupid if other player get your most wanted item but thats the game, and that makes you raid and raid over and over, otherwise developers should make release every 6 mounts so we have something new to achiev.