Goff seems Bledsoe-like to me (talented, but not a great field general), and BB loved playing Bledsoe. On the biggest stage, I expect he can be defended. There is no questioning the talent the Rams have on both sides of the ball, but the question will be coaching in the highest possible pressure scenario.
Suh, for all his fear factor, has found himself on terrible run defenses. The Rams and Chiefs have about the same lousy Ds in terms of points allowed. A season of results don't lie, and you know BB will be looking at ways to exploit those weaknesses.
The Chargers had a solid O and a much better D than the Rams. The fact the Rams barely won a shootout with the Chiefs in LA suggests they are comparable, but I would take Mahomes over Goff every day of the week.