Here are some of the raw stats:
John Given
Wins  53    Losses 11 	Draws 12   Win % .776   Axis Major Victory -- Slightly Allies
Boisforas
Wins 52   Losses 203 	Draws 28   Win % .233   ELO 1882
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Herr Straßen Läufer   
Wins 526   Losses 448   Draws 405  	Win % .528   ELO 2066 Axis Major Loss -- Totally Allies
Tiger 88
Wins 560   Losses 161 	Draws 118 	Win % .737
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Cam
Wins 91    Losses 134 	Draws  44 	Win % .420  Allies Major Victory -- Well Balanced
Deutscher Landser
Wins 47    Losses  22 	Draws  19 	Win % .642
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Laza
Wins 429   Losses  357 	Draws  177 	Win % .537   ELO 1986   Axis Major Victory 
Sir Killalot
Wins 101   Losses  133 	Draws  43 	Win % .442  ELO 1993
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Panzerjaeger
Wins  84   Losses  130 	Draws  47 	Win %  .411  ELO 1986   Axis Minor Loss
Kai
Wins  90   Losses 92 	Draws  32 	Win % .495  ELO 2047 (possibly slightly pro Allies?)
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Hawk Kriegsman
Wins  832   Losses 491 	 Draws  244 	Win % .608  ELO 2062 *
Kool Kat
Wins  61   Losses 52   Draws 24 	Win % .532  ELO 2048  * #
*Playtesters who found this balanced.
# Scenario designer.
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I do not believe that it is a matter of tactics. But, that is not a statistical issue. I did react to Steve's taking his force around the flank and found the German forces quite unable to stop the overwhelming Allied armored force supported by mobile SP's and infantry.
I think the scenario might have been more designed for balance if the Allies were forced to go into the heart of the German defense.
I'd be able to know & see more if Panzerjaeger, Kai, Sir Killalot, Laza, Deutscher Landser, & Tiger 88 would make their comments.
Winning a major victory as Allies, against an equal or superior opponent, and then saying it is well balanced may be stretching it a bit. But, that is my personal opinion. 
For balance sake, hypothetically, could Cam play the Germans versus Deutscher Landser and win as the Germans? I think not. But, hypothetically, if he did win as Germans, I would say it would then be more balanced than I first thought it is, at this moment.
Note; ELO scores are from the 2011 ladder, all other stats are from "since the beginning" in the players profile (ELO scores are not included in a members profile). I posted this before completing all the research (thus, some of the ELO's are not included above). And, for clarity sake, I am not a fan of ELO as a measurement, but others are so I included them.
HSL
PS. Please don't read this as an attack against any one member. I am trying to have a "gentlemanly" discussion on a topic using stats and not feelings. Remember the Allies win this more than they lose it, and much more so when the statistically superior opponent is the Allies?