The 210 wake will be more vert and likely a little firmer. The 205 has more ramp, less kick. You'll also need less weight in the 210 to get a comprable wake. you should probably try and go ride a 210, people either love it or hate it.
I am pretty sure the hulls are not the same between the dd sport/air and the v drive supersport/super air. Same basic shape but the v drive hull is MUCH deeper in the back. However, weighting a dd air properly you can probably get a very similar wake out of both.
^^^depends on the year. I think the 95 (might even be 93) and up air/sport hull is identical to the 210 hull. Wetted surface is the same. the v drive hull is not deeper in the back, only the transom is different.