just my 2/100 worth , and Im on 45+yrs with landrovers , and winching including heavy recovery . For most peoples requirements an electric winch is adequate , and is a cheaper and lighter option. However if you intend doing regular or extended winching then its a pto winch either mechanical or hydraulic . I personally prefer hydraulic for its fine control . but its drawback is one of weight and space for the required components. Camel trophy winches were selected with an eye to the short term usage, weight , sponsorship , costs , (the camel colour was surplus paint from discontinued model built by British leyland,called Sandglow). From my own experience I have used my winch on my 110 almost exclusively winching other vehicles out . Really for expedition use a winch on the rear of the vehicle would be more use , as there are alternative routes almost always, and you are not looking for extreme sport when travelling thru foreign lands, its not a Darien gap type venture:smiley_drive:
With regard to winching and driving at same time , its a recipe for disaster , and is usually down to either not a high enough capacity winch , or too much haste so not using a snatch block. So the use of pto that eliminates the possibility is a safety factor . If your getting a drop off in performance due to fluid viscosity in hydraulic winch then you have a badly designed system. JMHO