I have a 2010 D4 which I brought new. Its now at 252,000klm it has never left me stranded, yes its had problems however it has been a workhorse doing an awesome job. I never thought much of the D5 I looked but never felt inclined to buy one.
I also have a 2008 L322 TDV8 now that is one hell of a car. I am really surprised at how similar it is to drive compared to the new Defender. I am talking about around town and highway cruising. And that TDV8 3.6 is a bloody gem.
I started the hunt for a new tow vehicle the LC200/300 idea was dumped straight away. You need to spend thousands of dollars to make either anywhere near capable. I tried a Y62 it drove well but again money needs to be spent on them. Dealer networks I think people are kidding themselves on what they think can be fixed in remote area's and modern 4x4 will be stuck for parts if it breaks. The bad part for Toyota owners you will be stuck in some small crappy town. Land Rover will recover your car to a Dealer in a nice town.
I drove a D300 Defender I loved the drive but I was unimpressed with the engine.
I drove a P400 Defender that is one hell of an engine
My pick a P400 S 110 I have ordered one I picked the S because I could get a P400 at reasonable price.
My build
https://build.landrover/8C51608B