It's easier in the DSG no question and in a manual you may only get everything right 1 out of 15 times or so but really the differences is in a couple of tenths if that. The mph will be very similar the launch will be similar but very very hard to get right.
The purists might find separating the manuals from the DSGs as a sign that the manuals are technically inferior :) ( where's Goran )
Maybe have the times in three or more tables then. The overall fastest cars what ever the model/trans/mods and then the others divided as above under neath that , that way every one is happy and you can still obtain an easy reference. Harder to maintain though