I'll go ahead and say it Flacco>>>>Browning. Flacco wasn't good with the Browns this season, but Chase/Higgins is a lot different than Jeudy/Tillman. Truthfully, Flacco never really crossed my mind, as I figured the Browns wanted to keep him as at least an experienced vet to mentor the rookie QB(s)
I would have slightly preferred Russ, but I don't think much separates him and Flacco.
I think Flacco hasn't been near as bad as his numbers say. He was really bad against the Ravens (back when they were a good/healthy defense) in week 2, but other than that, I think he's been decent to good. I thought he played well against the Bengals in week 1 and got let down by his teammates who had 4 drops. I thought he played a good 4th quarter against Green Bay getting them the win when they needed him, and I thought he played ok against the Lions, where again his pass catchers were dropping everything. Flacco could/should have had 3 TDs in that game.
Chase was gonna be fine regardless, but I think this trade could really help provide a more stable floor for Higgins and Brown.