It's a pity they've dropped the 3.0 flat-6 petrol engine from the newer versions. My 2004 Outback 3.0Rn is absolutely superb, and I've had it dragging half a tonne of wood around a muddy field (literally dragging, no trailer!) with no issues. It's tackled some very rough tracks that I thought I'd need my proper 4x4 for (1991 Mitsubishi Pajero), slower than I'd do in the Pajero but it managed fine without any drama.
Remember that the Legacy/Outback started off as a farm vehicle and it's only recently started to become a comfortable semi-luxury road oriented car. It's not 4WD has been bolted onto an existing model, the 4WD system and boxer engine came first, then the body evolved around it.