Both were the #12 overall pick in the draft, and both have been wretched failures.
McNown - 25 GAMES PLAYED (not starts), 16 TDs, 19 Ints, 67.7 career rating, 5.09 net yards per attempt, fantasy rankings - 35 and 25.
Ponder -- 29 starts, 33 TDs and 30 picks, 75.8 ratingm 5.38 net yards per attempt, Fantasy ratings - 28/22/24
So, Ponder on an overall basis is a smidge better than McNown.
And ask yourself, where art thou Cade McNown?
McNown was traded during the 2001 preseason to the Miami Dolphins, along with a seventh-round pick, for a sixth-round pick, and a conditional 2003 seventh-round pick. In Chicago, he had fallen down the depth chart, below Miller and Matthews, competing against Danny Wuerffel for the third-string position. He would be named the third-string quarterback for the Dolphins, and saw no action during the season.
The Dolphins traded McNown to the San Francisco 49ers for a conditional seventh-round draft pick during the 2002 offseason. By then, Terry Donahue, former head coach at UCLA, was the general manager. Interest was briefly raised in McNown, as the 49ers were then searching for a quarterback for the west coast offense. Although he was initially competing against Tim Rattay, Giovanni Carmazzi, and Brandon Doman for the backup spot behind starter Jeff Garcia, McNown reinjured his shoulder during the preseason. When it was revealed he would require season-ending surgery, he was placed on injured reserve. McNown was released by the 49ers during the 2003 offseason. His rights were shortly thereafter acquired by the Calgary Stampeders, although he was never signed.