Driven all the MAN variants, some more (1000km+) than others. As for HEMTT, had a good look round one but the PLS version is very inferior to our version. Yes it has a BIG engine, but the type of gearbox saps a lot of power and looses more importantly torque.
The PLS has a payload reduction as soon as it goes x-country, which sort of defeats the object, certainly compared to ours.
I have driven the Oshkosh PLS (slightly different to the HEMTT PLS and it is a good vehicle, and can carry full load x-country, but i would still opt for the MAN variant, just not the one we bought(!) but the SX version with full independent suspension.
Im not fully clued up on the SV® as my area of expertise on the trials team was not this vehicle but others.