TD5 - exhaust manifolds warp and snap manifold studs, fuel/oil capillaries along th injector wiring look and gooses the ecu --- On the plus side you can tune them quite well
Disco 2 - Hub bearing kits are a monster price, air suspension (if fitted) is notorious for having a mind of it's own. Not sure if the rot problems of the D1 are shared by the D2, if they are then look forard to boot floors, footwells, sills front inner wings, D pillar seat belt mounts, Oh and don't forget the manditory oil leaks. --- On the plus side You can get very nice leather upholstery, theyb quite comfy to ride in and you can get lots of off road bits straight off the shelf.
Defender 90 - Oil leaks, diffs (unless you go ARB - Quaife - Detroit - 4 pin etc),rot of the outriggers; rear crossmember (whole chassis really); bulk head, electrics (what there is of them) are suspect (suspect it wont work when you need it too); have to drive with the window open (unless you have already lost your right arm from the shoulder); they're noisy inside, the heater is fitted at best (heat output is purely optional, no one has ever order that option though). --- On the plus side you can change/modify (with off the shelf bits) just about everything (including the chassis) for something worth having.. except the arm out the window thing, thats mandatory Green Oval.
Cruiser - Might break a CV - Fit uprated ones from the states as Gregster quotes, they're big and they're big and laning can be a bit tight, did I mention they're big. --- On the plus side they're big, comfy, with leather upholstery, heater with aircon that all works as you'd expect, no standard oil leaks (if it leaks it needs TLC), no rot to speak of, looked after they go on for ever.
Patrol - Like the Cruiser really but with stronger axles if you got a GQ or GU, GR's were pretty good if you could find a SWB 4.2 (tin worm can get at these in isolated places).
Merc G wagen gets my vote - bullet proof if you can fnd one with the straight 6 diesel with lockers both ends and no tin worm in the wheel arches ( though this you cut out when you open up the arches to accomodate 35's). --- down side is no one is giving them away for the price I can afford (because they are soooo good).
Regards
Stuart
Remember, keep the greasy side down!