Your comments on Eli are also well-made. Bottom line is that Eli has won 2 Super Bowls......I can think of a ton of QBs that can throw a prettier spiral, or can move around in the pocket better, or have a more accurate arm, etc., etc.
But I can think of very few QBs that function as smoothly as Eli Manning when trailing in a huge game. Any coach in the NFL would jump at the chance to have that sort of clutch play in a QB.
We know Brady has the same quality......we don't know if Kapernick, Ryan, or Flacco do.