With the slight increase in difficulty in early level I think we should archive the current records and reset the ladder.
Personally I like the new difficulty, makes it more interesting especially when doing it without heirlooms or buffs since you can actually die pretty easily if you get too greedy.
You guys had better start farming merry supplies so you can stock up on savage gifts as they have a chance to drop Elixir of the rapid mind which may be necessary for 1-20 speed runs in the future and is the same as the one that drops from the rare garrison mission but NOT the same as the one that drops from Krol the Blade/ Archiereus of Flame i.e Elixir of ancient knowledge.
Proof that both stack: http://www.wowhead.com/item=128312/elixir-of-the-rapid-mind#comments
since they both stack its possible for 600% xp gain from these.