I got to #3 but it was mostly luck.
Yeah lol, its pretty much just Sawk and Throh. You do need to look out for things that run strong fighting moves like Braviary, Absol, Magmortar and Pinser. You COULD run sp def Altaria with Roost / DD / Dragon Claw / Cotton Guard if you want. This would kinda work like Dragonite in OU, just a lot worse.
Try Grass Whistle > Mud Slap on Snover. If you want to set up and have a free turn Grass Whistle will do that for you. Its nice when you're against something that will obviously switch, or to remove a Stealth Rocker from play early on.
I think Cleffa > Jynx, and I'm definitely using that Stantler set, it works.
I prefer offensive Altaria to take down steels, and I don't want to give up Roost for Cotton Guard. Although Cleffa can now deal with steels...
I also decided on grasswhistle a while back, but for whatever reason I forgot to put it on.