I have only ever had one Landcruiser, which was brilliant and I am planning another one very soon.
Have had more Land Rovers than I can remember, lots of other Japanese 4x4's and many other commercial vehicles for businesses I have run or as present own.
The three best tow cars I have had are a Discovery 2 commercial 2002, Isuzu trooper Lwb 3.1 1993 & LC 100 V8 1998.
The discovery was the newest of them I owned, did around 60000 miles with me in the three years I had it, was just great at what I needed as a tow car and also carry my tools of the trade, we sold it at around 130,000 miles because in the 3 months prior to that it cost 2500.00 to keep on the road due to bits breaking or falling apart after it hit 100k. Cannot recall the mileage of the Trooper, it was the most amazing tow car would pull anything, was just let down by the bodywork slowly rotting away around it.
So far my best tow car, the 100LC, I cannot fault its ability to drag huge loaded trailers. It had niggles, the LPG converter did not do well and I had two different set ups on it, the first an egas one parts were just not up to the job and would fail regularly, but never stopped it working. The second one Tartarini, did not like working with the power of the engine flat out and would switch back to petrol and make daft noises, or just stall when you least need it. I think that is why I lost confidence in it and sold it. The other issue I had was with the active suspension and fixed that with airlift bags in the rear springs. This leads me onto Land Rover's, we swapped this one for a Freelander 2 i6 57 plate, with its lovely 3.2 straight six petrol engine. This is now my wifes car and is just great, does all she needs in a car and is not too much trouble. It has had a few trips to the dealer. These are because they are never very good at fixing it first time, just throw parts at them until its fixed as the warranty covers that! In all my years with LR's have always found dealers to be looking down on me as I do not fit the type they expect, but found the best way to deal with that is keep throwing the troubles back at them. Not had much to do with Toyota dealers as the age of the car I had was 9yrs and good independants serviced it.
I do think I have my last Land Rover in the i6 and will not be in the market in future for such new cars so will not have the issues Discovery 4 owners have, watch this space for anothe V8 100 very very soon!