I don't think the sport nautique and the excel are the same hull or even that similar are they? I thought the excel had the real deep V hull all the way to the transom like those early direct drive barefoot nautiques. The sport that year had a kind of different hull than Nautique had ever really had.
1992 Sport hull
Just based off of hull shape I would say the Excel has a better Surf wake or is at the very least easier to weight do to the Deep V and Vdrive. I have no idea on the wakeboard wakes but generally(not always) a deeper V boat means a little finickier wake side to side or a steeper wake.