Wins are a team stat.
Daks rookie year the Cowboys went 13-3 while Dak threw for 23 TDs and 3,600 yards.
Herberts rookie year the Chargers went 6-9 with him while Herbert threw for 31 TDs and 4,300 yards
However, Dak had 3 1st team All-Pro linemen and a RB that won the rushing title by over 300 yards.
Herberts leading rusher had 530 yards.
If you cannot see the difference there and still want to make believe Dak is better because of a team stat like W/L then by all means, go wild, but I'll choose the uber talented guy instead.