Get the one WITHOUT independent rear suspension. Our local Honda dealer claims indpendent rear suspension is a maintenance problem when used hard. The one with a solid rear axle never breaks.
As for the hydrostatic transmission, no comment here because I have not used one. I have used the ones with the regular 4 spd. transmission (no clutch) and they last forever and never overheat.
Also, consider that a 2wd model will do 99% of what you need done. Would it be better to get two 2wd models instead of one 4wd model?