You couldn't go wrong with either Harbaugh. In fact, you probably couldn't go wrong with their father Jack, either, or John and Jim's brother-in-law Tom Crean, the men's basketball coach at Indiana.
All Jim has done is make it to the NFL's final four in his first year and the NFL's final two in his second year. He has taken bold gambles, developed quarterbacks and presided over an unpredictable offense. All John has done is make the playoffs in each of his five years as a head coach, and gone 8-4 in the postseason.
I want their dad, Jack Harbaugh, to coach my team. I'd pay whatever I had to so he would leave the comfy confines of his basement in Wisconsin to return to this sideline.
Then he'd hire Jim as offensive coordinator and John as defensive coordinator/associate head coach (since he's older), with sister Joani overseeing special teams. Jack Harbaugh instilled his coaching beliefs in his sons and they've won, just like he did as a college coach.
Expect a fierce battle in New Orleans, but one Harbaugh brother will have to lose. And you can bet that the rest of the family will rally around him even while expressing their joy for the other.
Jack is the ultimate coach, but he also seems to be the ultimate family man.
Not only was Jim a decent starting quarterback in the NFL, but he transformed Alex Smith from a first-round bust into one of the league's most efficient quarterbacks before unleashing Colin Kaepernick on the world.
John has helped Joe Flacco blossom into one of the best playoff quarterbacks in NFL history, but his Ravens team also features two first-ballot Hall of Fame defenders in Ray Lewis and Ed Reed.
Both have had nothing but success in their NFL stints, so in this case it's best to choose John's experience over Jim's quick ascent with the 49ers.
John has led the Ravens to three AFC championship games in five years, and now the Super Bowl. The Ravens have been a steady force with John at the helm. He was also the special teams coach for the Eagles when they went to four consecutive NFC championship games and a Super Bowl under coach Andy Reid.
In other words, John has been coaching successful NFL teams for quite a while. In only his second year in the NFL, Jim hasn't had the opportunity to show whether he can do it over the long haul.