BS. You can be the best at your position and NOT have a ring. Barry Sanders is a prime example of that at the RB position and Marino at QB.
I have said it before and I will say it again. A SB ring does not make you great. Benchwarmers on a SB team get rings but that certainly doesn't make them HOFers. Marino did what a great QB should be able to do......he carried his team for his entire career. With no running game........only flashes of what seemed like a good defense as well as draft after draft of annual disappointments, Marino remained the rock that coaches, players and fans could count on to give them firm footing during the season. Other teams knew what Miami's gameplan was (pass, pass and pass some more) yet few could stop it even then.
If you still wish to claim that Marino isn't the greatest, look at those you would put ahead of him and look at the talent that surrounded them. NONE of those QBs could have come into Miami and succeeded in grasping a ring. NONE of them could have carried this team with the lack of talent it possessed for all of those years. Like it or not, Marino was the best ever.....he simply wasn't fortunate enough to have a personel guy that could give him the tools he needed to reach that final step.