For Argentina they do.
I think they're wheeled so they have more mobility, but yes tracked vehicles are superior. Stryker are supposed to be weaker than an MBT, they're meant as a fast APC, and the MGS basically has the same armament as the original M1 Abrams. There's also Mortar Carrier Strykers and ATGM Strykers.
LAV's are wheeled too.
Define mobility? Because the only mobility of the Stryker I have seen is driving down a road and getting blown up or getting a tire deflated. They are too big for the c-130 anyway(too my knowledge).
best apc(plus it can fit in c-130, act as a mortar, atgm carrier, command vehicle, medic vehicle, ect)
i'm sorry gear