My biggest 6th Ed WTF was just how obvious it is that GW care nothing for balance at all with their new flyer rules. Now I am not somebody that usually complains about anything being broken or about balance, I play in a competative environment so Im used to seeing broken combos etc and dont really care but the new rules totally invalidated so many armies because of one thing:
All GW had to do to make the game fair was include minor anti flyer measures in the FAQ's they released. All Missiles get Flak Fire rounds, Tau Seeker Missiles are anti air, Hive Guard can fire 1 shot each instead of 2 in order to hit flyers at normal BS. The rest is ok as GK, BA, Necrons, Guard all have their own good flyers anyway, Orks get lootas. Thats all they needed to do and it is very clear that they didn't, simply because they know people HAVE to buy flyers to stay competative. The other reason they didnt is so that people without a good grasp of the rules would go and buy fortifications or defense lines with the gun platforms as their anti flyer options [which doesnt work as they are T7 2 wound models that will be dead turn 1 before any flyers arrive anyway, if you could join a unit to them and make them count as an artillery piece that would work fine, but you cant].
So they have totally ruined game balance on purpose. Of course once flyer sales go through the roof, everyone will start getting very effective anti flyer [everyone gets Flak Missiles in an FAQ or something].
The measures some armies have to go to just to get slight and not even very effective anti air is stupid. Nids can do it well if they take as many psykers as they can and give them all extra powers and hope to roll as many 'puppet master' results as possible. All I have for my Wolves is to take Njal and hope to get lucky with his whole storm thing.
The whole ally thing doesnt help either unless you take 3 Vendettas as any single ally flyer will be outclassed by your opponent having at least 3 flyers. Hydras dont work because flyers just kill them on the turn they come on.
Pretty frustrating, im not going to buy any flyers for about a year untill the metagame really settles down and we see how they stand with later FAQ's and Codex.