Well, over the years, I've had 6 Land Rovers (2, 3, and Defender), 1 Range Rover, I Discovery, 1 Daihatsu Fourtrak, I Isuzu Trooper, 1 Austin Champ, 1 Nissan Navara and 1 Toyota Hilux.
I don't recall my Landies being any more reliable than the rest, however, they would rot as you stood and watched them. Had a few electrical problems with my Disco which was down to the fact that they were fitted with an archaic British Leyland alarm system (left over from the Allegro or something

)
Current vehicles are a Defender on a 90 plate, a Disco on a 95 plate and a Hilux on an 07 plate. Chassis about shagged on the Defender, Disco is great and does a wonderful job. The Hilux is truly outstanding. Just wish I'd bought one sooner
Worst of them all, though not unreliable, was the Navara. Driving position was like sitting in a saloon car, small cabin, a gearbox that always felt like you needed another gear, and an engine that just felt 'soft'.
Purpose built:
Four wheel drive plus difflock
Must be a pickup, for the dogs and getting food out to the feeders
Double cab pickup, but instead of rear seats, a standing platform with hatch above for the shooter
Must have a rear Ifor Williams, for the dogs
Shortend pickup tub for manoeuvering in tight places
Flat bed on roof, for rifle, with 4" sides to stop gear sliding off
Quick detachable bar, onto which could be fitted remote lamps and cameras
Shooting rests fitted to both front doors (the type where you can actually have your window closed when fitted)
Great mud tyres
Brake lights on a switch so that they can turned off
No interior lights
A Japanese diesel engine engine
Well, a converted Toyota Hilux really
George