Salutations All
I'll add my tuppence worth here.
I would say both Generals were excellent commanders without peer and both had their espective quirks, but many forget one aspect and that is Field Marshal Montgomery never had faced a two front war in North Africa, after Operation Torch Generalfeldmarschal Erwin Rommel did and held his own for a long time.
Then when the Normandy Landings took place and a beachead was established Germany was now fighting a three front war, Generalfeldmarschal Eriwn Rommel did the best he could with the situation, by this stage Germany was doomed.
Regards
Roddoss72