Take a big regional bike race....say the Chequamegon Fat Tire Festival in Wisconsin. 1700 entrants, lots of guys hell bent for the top 100 places, a few current and ex pros thrown in for good measure. This year a guy on a single speed steel bike won it. And his brother came in 4th on a single speed steel bike. (you won't find'em in the single speed class....they ran in the open class) It's a mountain bike race but Travis Brown came in 6th on a cross bike. And Mr. and Mrs. Eppen came in 16th on a freakin' mixed tandem! I've run this thing 13 times, 3 times in the top 100 on a geared bike, 3 (of three tries) times in the top 100 on a single speed. I've run duallies, front suspension, no suspension, gears and single speed.
It boils down to the motor. In cycling, horsepower rules. Lance did not win because he was on a Trek, not even in the time trials, not even on the time trial up Alpe D'Huez.
Snowsports are different, some skis or boards are faster thru the gates than others, some are easier to carve and hold on ice better. I'm a novice rider but an experience ski racer and some skis just feel "right", some don't. You can tell on your first couple of turns if you're riding something that works or not. You might pick up a second on a 1 minute course with some dialed in stuff vs. some stuff that is not working well for you. For making nice carves down some cord it'll make less of an objective difference.