I think is still a bit overturned, so I personally ban him if I get first pick since I play top lane a decent amount. I won't say I feel he is OP, but then again I don't really say that about many champions.
I don't get the point of banning. I know Riot thought he was too strong, and so did others, but I never felt he was as ban Worth as Morde, Garen, Darius, or Fiora.
Is a toss up for me. I still find him very annoying to deal with because for as tanky as he very easily gets, he still foes far too much damage, especially with his ult. I think he is in a decent spot, but still find him frustrating if you have a team, and especially a laner that can't deal with him to keep him from getting ahead in lane. I still ban him.
is actually the one I would ban over Skarner, as I feel he is just annoying right now more than anything. He tends to either get fed because someone doesn't know how to lane against him bot, or he completely feeds because the person using him doesn't know how to play him bot. His kit is just a bit odd to have him bot and it causes issues I just don't care to have to play around from the bot lane, so just get rid of that guy.
isn't a problem for me in lane personally, but the problem with her isn't laning phase, it is how easily she can just get to wherever she needs to be in a team fight on whoever she needs to get to, and peeling her off is damn near impossible before she kills her target. Even if she gets to your adc, kills them off, and dies, she already did her job, and it is hard to stop her unless you do in fact stop her immediately. I would say ban worthy, but with only 3 bans, you have to decide, and that is where the problem is for me currently, If all of the above (except Skarner) aren't banned, they will almost 100% be picked right now, which is why they have such a high ban priority for so many people.