I've also heard a few horror stories with various Range Rover models, again people getting so fed up they've handed them back. The V8 diesel engine is made by Peugot apparently, think it's the only reliable thing in them!
For me it would need to be a Land Cruiser, either Colarado or Amazon. They would be really be the only competitor to the range rover and from what i've been told are far more capable off road too.