I wouldn't say best QB in the draft.
Honestly, since hindsight is 20-20, I'd say that the best move would've been to take Jonah Williams at 6 (even if he wasn't really worth it),and to have not traded up into the first and have traded for Rosen. Trading ODB was stupid, but I get why they did it, and even then, Rosen was a better prospect than literally every QB in this draft(yes, even Kyler, the Cardinals are just stupid), and the protection would be better in NY(especially after drafting Williams) and he'd have a legit cast on offense to work with.
I liked Jones a lot more than most, but he's really going to have to be a slam dunk player for you guys. He's not in terrible position, Saquon will make his life easier. But you could've traded for a guy who could be a slam dunk for pennies on the dollar and put him with a good offensive mind who'd know how to use him.