IMO, it really depends on the tasks you're doing. I think loader work in 1st range is too slow and too taxing on the drive train (and can even overheat engines at normal RPM). In most other applications like finish box blad'ing, back blad'ing or back dragging with FEL bucket, all finish work, 1st range is fine.
Mostly, I use FWD only when it's absolutely necessary and usually to get out off a stuck situation or assist in plowing into fill when filling the front bucket.
Mark