The two teams achieved promotion in very different ways. While Chris Wilder's relentless team romped to the title by 13 points, Keith Curle's Cobblers sealed their return to the third tier thanks to a brace of remarkable play-off victories.
But the two sides have their similarities too, not least the unity and togetherness displayed during difficult times, and they are also both laced with quality all over the pitch.
That makes for some tricky decisions when combining the two, although a lot depends on the formation you want to go with. To keep things simple, we've stuck with a straightforward 4-4-2.
Here's who makes our team...
5. Left-back: David Buchanan
Very few were as consistent and as reliable for the Cobblers during their glorious title success in 2015/16 than Buchanan, who played every minute of every game in all competitions. Photo: Pete Norton
6. Central midfield: Alan McCormack
He didn't play as much as he'd have liked but McCormack's quality shone through when he was on the pitch, particularly during Town's play-off campaign. Ran the show against Cheltenham and dominated the midfield at Wembley. Photo: Pete Norton
7. Central midfield: John-Joe O'Toole
No Cobblers XI would be complete without O'Toole. The popular midfielder turned his Town career around in 2015/16 and scored 12 goals. Not many opponents would fancy playing against a midfield two of O'Toole and McCormack... Photo: Pete Norton
8. Right midfield: Ricky Holmes
Spearheaded Town's title charge with some stunning displays in the second half of the season, enjoying his own goal of the season contest. The screamer at Luton, the volley at Dagenham or the thunderbolt at Orient, take your pick. Photo: Pete Norton