I like the round robin and NBG system but ever group I make people request lotto be turned on if not already. The reason is in the end every one starts hitting need in the NBG system and the round robin is like playing Russian roulette with items people need.
Like any new system it'll take time for people to catch on and the always on need clickers will be known. So IMHO the NBG system will replace the lotto sytem as for the round robin we'll see, I personally like the round robin system but I think its to chancy for most people.
I would like to see a Master Looter system put in to place. Where all loot is sent to a bank like thing and at the end it is all split up. Granted a system like this would only be used by guild groups or close friends but would make grouping and dungeon crawls a lot faster, so we could go on to the next one
I think it would also become the loot system used for raids as you wouldn't have to bother with loot until after the raid was over.