It is the ultimate Steel City football showdown - who is the greatest Sheffield football manager in history?
Blades fans voted Dave Bassett as their ultimate Bramall Lane boss while Owls supporters plumped for Ron Atkinson as their number one holder of the Hillsborough hotseat in a series of online polls.
Now we want to know who deserves the ultimate accolade of the greatest football manager in the city's history.
Who will win? "Big Ron or Dave "Harry" Bassett? The result is in YOUR hands.
Here's the rundown on both before you cast your vote
Born: 18 March, 1939
Place of birth: Liverpool
Clubs played for: Wolverhampton Wanderers, Aston Villa, Oxford United.
Clubs managed: Kettering Town, Cambridge United, West Bromwich Albion, Manchester United, Atlético Madrid, Sheffield Wednesday, Aston Villa, Coventry City, Nottingham Forest
Sheffield Wednesday career: Atkinson enjoyed two separate spells at Wednesday - and the first tenure ended in controversial circumstances.
He arrived at Hillsborough in February 1989 after a spell at Atletico Madrid.
Although the club were relegated to the Second Division in 1990, Atkinson secured promotion back to the First Division the following season. They also won the League Cup that year, beating Manchester United 1–0 at Wembley.
On 31 May 1991 Atkinson stated he would be remaining as Wednesday's manager, only to leave for Aston Villa a week later, a move that upset some Sheffield Wednesday fans with "Judas" chants echoing around Hillsborough following his departure.
After spells at Villa Park and Coventry City, Big Ron was back in Sheffield in the autumn of 1997.
In November of that year, he returned to Wednesday following the sacking of David Pleat.
Wednesday had made a poor start to the 1997–98 season, including a 7–2 loss at Blackburn and a 6–1 loss at Manchester United. Under Atkinson, Wednesday's form picked up immediately and they pulled well clear of relegation trouble, but he was not rewarded with a permanent contract.
Born: 4 September, 1944
Place of birth: Stanmore
Clubs played for: Wycombe Wanderers, St Albans City, Wimbledon
Clubs managed: Wimbledon, Watford, Sheffield United, Crystal Palace, Nottingham Forest, Barnsley, Leicester City, Southampton.
Sheffield United career: In 1987–88, Bassett became one of the few managers to have the dubious honour of being involved with two relegated clubs in the same season.
On 21 January 1988, just days after leaving Watford, he took over at Sheffield United. Despite bringing many new players, he was unable to prevent a weak team from sliding into the Third Division after losing the double-legged play-off with Bristol City 2–1.
However, with the Bassett bringing his own backroom staff during the close season and more new players brought in, he took them back up at the first attempt in 1988–89.
A second successive promotion following in 1989–90, and First Division football returned to Bramall Lane in the 1990–91 season for the first time since the 1970s.
An influential player in this team was striker Brian Deane, who was capped three times by England.
Sheffield United failed to win any of their first 16 league games in 1990–91, breaking a First Division record in the process and went into the new year at the bottom of the First Division.
But a rousing resurgence in the second half of the season saw the Blades climb up to a secure 13th place in the final table.
They did even better in 1991–92, finishing ninth in the First Division and securing a place in the new Premier League. Sheffield United's Premier League debut was reasonable.
They finished 14th in the final table, reached the semi finals of the FA Cup, and condemned Nottingham Forest to relegation by winning the penultimate game of the season.
Bassett's luck finally ran out on the last day of the 1993–94 season. Needing a single point to avoid relegation, they lost 3–2 at Chelsea, having led 2–1 with 5 minutes remaining.
An eighth-place finish in the 1994–95 Division One campaign was not enough for a play-off place, and Bassett resigned the following December with relegation looking more likely than promotion and protests against the board mounting.