I'm going to be a contrarian and argue that Brady's accomplishments (and whatever records he might still put up) are all the greater because, year after year, he had to get past Peyton Manning to achieve them. Wins. Conference Championships. Super Bowls.
Brady's legacy is all the greater because he didn't just have to beat out Ben Roethlisberger with his two rings and a bunch of one-hit (Flacco) or no-hit (Luck, Rivers) wonders to achieve them, but a guy who put up some of the greatest numbers in the history of the League and got to four SB's of his own.
In the long run, Brady's star will shine even brighter because he played alongside Manning in the same conference for 15 seasons and will always come out ahead in any comparison to Peyton.