Without having read the rest of the thread, I voted Goff. He's been there and lost, got traded and made it back to the NFC Championship game but lost again.
Although I am a Goff fan (to a degree) he still has to prove he can win THE big game.
Burrow has made it and lost with slightly lesser teams.
Has Lamar won a playoff game?
Josh Allen has gotten as close as he was able to by willing and carrying his team to hard won victories.
Goff has had some great games. Notably the "Super Bowl Preview" against the Chiefs in 2018 and the NFCC game against the Saints. However, I do believe there is a book on him that has so far kept him from ever winning the big one. How he answers that question will probably be his legacy.
Allen, Jackson and Burrow still have time.