Brand, Vi, Riven, Kennen, Morgana, Jinx for sure. They're all fine at the moment in solo queue. Draven and Thresh buffs are debatable.
I'm not a fan of the Poppy buffs either, because like her previous ticky-tack buffs they're going to be ineffective while setting her up to be OP once they give her something meaningful - shades of all the small buffs they kept giving Trundle last season.
Also hate the Gragas nerfs on his ultimate, out of principal. Changes to abilities that add clunkiness are always some of the worst. It's an insanely useful spell with a low-ish CD even at rank 1. Increasing rank 1 CD to something fitting the potential of the ultimate (150s) would have been better.
The one set of buffs I really like however are Jayce's. Not because I think the numbers themselves are great, but rather the general idea of buffing his hammer stance abilities. By making them relevant it'll give Jayce more flexibility in his match-ups, which gives experienced Jayce players more tools and improved results without having to touch obnoxious cannon form Jayce.
It's a shame that Riot decided to lump all the marksman changes in the same patch with only one patch left for corrections. I'm very confident that had the Ashe/Sivir/Jhin nerfs hit in 6.16 then they could have used two patches worth of time to see how their changes affected the remaining ADC pool and obtain better results. I have a real concern that what will end up happening is that those three will be replace by another three and the game isn't actually better off.
