The shows were interesting but disappointing in that this was to be a demonstration of baking skills, Not construction/mechanical skills.
If there is a Buddy vs Duff 3 I would hope the emphasis would be on showing detail. Cake (that is actully eaten).
Why not give perameters;
Set Budget
Size of Cake
Theme
Detail
Taste
And let the crowd eat the cake
Seeing all that food wasted was distressing.