I just want to know because I plan on making a game soon when I work out the collision and ai. It's gonna be a racing game, and the vehicles and track will be made of models (x or 3ds) and an invisible matrix will be used for the road "collision", while invisible objects (planes) will be used for the "wall collision".
Since I will expect the levels to be quite big, and there will be multiple cars in the game, I just wanna get everyone else' opinion on which file type will be faster, both in loading and in-game performance. Just a quick "this" or "that" answer will suffice. Thanks!