I feel like I know the answer and it's questing. I am just wondering if things have changed lately, I know there was the bug for pet battles but it's hot fixed now. Is there anything faster? I am currently 39 with full heirlooms. Want to level as fast as possible to start raiding.
If your goal is raiding, you should go with quests. You'll get gold (farming is not that good while not at lvl-cap), but more importantly you get gear with which you can do intances to get your 1st raidgear. A lvl90 with no equip ain't good for much^^
Just quest, it takes under a week to go 1-85. Running it for more time is better than sitting around trying to make it a little bit faster, if you do that you'll spend more than a week tweaking with it when you could already be 85 (or 90).
If you are really wanting to be fast levelling without using a dubious bug then RAF yourself and enjoy 300% faster levelling.
What are you talking about I've RAF'd myself hundreds of times to ensure fast levelling of new toons. I've never received a ban or anything so why do you think that would get you banned?
one "theory" that is held by many around these parts is that blizzard pays "more attention" to RAF/SOR accounts than others and that bans toward these accounts are more common (probably more to do with using them to quickly get back into the action they were caught doing the first time imo) unless you have a leveled guild, id say questing just because you can get your cash flow on much faster with normalized guild xp. this will be somewhat less with RAF as you'll do fewer quests, but have twice (or a RAF-chain of more) the toons doing each of them.
Depends on how daft you are with the hours each account puts in, I've never had an issue by being smart about hours per day and what they do. I barely touch grinding spots any more thanks to CRZ so what I use now is much better for human behaviour patterns.