Falcons.
NFL probably already has this one written in permanent marker or scripted and saved on their hard drives.
If the league has any integrity (spoiler: it doesn't), then Atlanta will finish it. Anybody who thinks it'll be lopsided or leaned coming into the match, barring sudden injuries, you're on drugs. Best offense in the league to force a mid/high scoring game. They have a full receiving corps to match New England's and the backfield as well. Look for key plays on both defenses to be the deciding factors. Probably will come down to the end.