The BBC Sport Online chief football writer Phill McNulty picks his combined 'best of' team today. I'm sure his team will provide a bit of debate on here:
GOALKEEPER
BRAD FRIEDEL
No contest - thanks mainly to the outstanding form of Blackburn's American keeper, who was brilliant again at Arsenal.
Celtic's Rab Douglas is not in his class, and his image south of the border was not helped by his blundering in the recent Old Firm draw with Rangers.
DEFENDERS
LUCAS NEILL
Under-stated Australian who is regarded by boss Graeme Souness as one of his brightest young players. Tipped to emerge as a central defender, but can play at right-back.
JOOS VALGAEREN
Powerful Belgian defender, who is an important part of Celtic's game plan under Martin O'Neill.
He missed the World Cup because of an ankle injury, but will prove a tough opponent for Blackburn's potent attack.
HENNING BERG
Hugely experienced Norwegian who has fought his way back into Blackburn's team. Sampled Premiership success in England with both Blackburn and Manchester United. Will be vital in the hot-house Parkhead atmosphere.
ULRIK LAURSEN
The Dane would fill what might be regarded as a problem left-back position in this united team. Shrewd signing by Martin O'Neill.
MIDFIELD
NEIL LENNON
Lennon can fill the right side of midfield, although Blackburn's David Thompson is more than a match currently.
He was a prized signing by O'Neill when he lured him from Leicester and will be highly-regarded by Blackburn.
STILIAN PETROV
Hugely gifted Bulgarian who will pose a massive threat to Blackburn and has been making a powerful case for inclusion in this line-up.
DAVID DUNN
Celtic fans may clamour for Paul Lambert's inclusion, but Dunn is a hard-running and skilful modern midfielder who is performing to the highest level in the Premiership. He is regarded as a future England regular.
DAMIEN DUFF
Brilliant young winger who will hope to overcome injury to play. Celtic's Alan Thompson has claims, but in reality Duff is the better bet.
STRIKERS
HENRIK LARSSON
Automatic choice. A Parkhead legend and rightly so. The English cynics question whether he would be as prolific in the Premiership. Maybe not as prolific - but certainly a success.
ANDY COLE
Tough call with Dwight Yorke and Chris Sutton to choose from, but he is a man for the big occasion - and he has sampled enough of them.
MANAGER
GRAEME SOUNESS
Bound to be a controversial choice, but Souness enjoyed the sort of massive success in Scotland that has had Martin O'Neil hailed as a miracle worker at Celtic - and more besides.
Souness also won the Worthington Cup last season at Blackburn, repeating another O'Neill feat.
He has won trophies at Liverpool and Galatasaray, and has proved his maturity as a manager with his team-building at Blackburn, where he won promotion and got them into the Uefa Cup.