I still have to finish scouting Trask and Mond (and maybe return to Lance as his All-22 film came in late), but to me, I view this year's QBs roughly like this:
Lawrence - High floor, high ceiling, just a flat out elite prospect. Jacksonville messed something up terribly if he isn't an above average starter by year 2 IMO.
Fields - I think he likely falls somewhere in the realm of being a bigger Tyrod Taylor and Dak Prescott. So, probably likely to at least be a below-average/sometimes average starter but with really strong potential.
Lance - Eerily similar to Josh Allen coming out of Wyoming, except he's a much better decision-maker and probably a little better running the ball. I think Allen was the better passer of the two in college both in terms of the velocity and the accuracy. As Allen has shown, there's a high ceiling there, and I think he can play right away, but it will probably be a bit of a bumpy road as he works on getting his footwork under control and hopefully improves his accuracy as a result.
Wilson - The different arm angles he can throw with and the quickness of his throwing motion are really fun to watch, but he's unpolished in a lot of ways right now (maybe the worst/laziest playaction I've personally ever seen, and he tends to just throw the ball whenever he sees someone without caring about his feet at all). Still, a creative coordinator will have fun with the things he can do. I have his likely range as somewhere between Jake Plummer and less mobile Kyler Murray.
Mac - Not as bad a prospect as Mason Rudolph was, but still an unexciting floor and ceiling IMO. He just isn't a special passer, both in terms of arm strength (though I do think he could throw with more velocity if he works on his footwork more) and accuracy (which is good but not great) and he certainly doesn't have the legs to make up for it like Lance for example. I see his upside being Brad Johnson and wouldn't be surprised if he starts for a few years and ultimately settles into being a backup.
Davis Mills - I have him rated slightly behind Mac, but considering where the two will be drafted, I'd rather just wait and take Mills. He shows the same anticipatory throw ability and accuracy that Mac has with better arm strength. Mac definitely does a better job protecting the ball though, and that probably makes him a safer bet to have a long career. I also don't factor it into my grades, but Mills and his knee just don't look right to me. He doesn't look comfortable moving around and there's a few examples where he couldn't really turn his body to throw a screen pass and ended up limping after trying to throw it even though he wasn't touched.
The top 3 I'd for sure take if I needed a QB. I'm more skeptical of Wilson but I'd still take him somewhere in the first. Mac and Mills should be Day 2 picks at best IMO.
