Well, you didn't really clarify my questions.
I'm going to assume you mean that the stick shifter (knob and shaft) feels as though it has a lot play side to side while the car is standing still.
It may very well be the difference between the two car makers, but I'd investigate if the car shifts smoothly through all the gears at both high and low rpm shifts. If there are any problems during that test, then I'd consider your synchros may be at fault.
By the way: Did you buy the car used? If so, did the previous owner confess to any modifications to the car?
