He was an above average QB for a long time in an era of inflated passing stats. Never had a season in the top 3 of passing TDs (3 in the top 5), never a top 4 season in passing yards (2 in the top 5). The only major stat he lead the league in was INTs (3 times). 4 Pro Bowls in 17 seasons (also in an era of inflated rosters due to players sitting out), 0 All Pro nods.
If not for 2 (admittedly great) post season runs, he'd have 0 shot whatsoever at the Hall. I say he doesn't belong, but I expect him to get in.