I'm not a fan of Rosen in the 1st. I don't worry about his character as much as his game, which has been consistently all over the place. He's not athletic enough to bridge the gap between the consistency you need from a QB and Josh Rosen. I like Rudolph and Jackson more than I do Rosen, and I have 3rd-RD grades on each (Rudolph could still move up a little). I trust Rudolph more, and Jackson can win games in the right situation (we've talked about his skills/limitations quite a bit). Rosen's ceiling is lower than people think, and his chance of busting is higher.
Darnold has an All Pro ceiling, with some concerns; Mayfield (hand size?) has a ceiling near Brees and Wilson (pretty good), with character and hand size being the concerns. Rudolph looks like a very good bet to succeed in an advantageous position, but I don't think he's a guy that elevates an offense - where Darnold and Mayfield could.
I do worry about whoever Cleveland drafts. I was not especially high on Kizer, but their handling of him was horrific in 2017.
Here's a QB mantra: be patient, be picky, look for value.