My uneducated 2 cents. I have little experience with most of these vehicles other than reading online, but a lack of education has never stopped me from shooting my mouth off in the past. So. . .
I'd send my sister or wife out in a LC76 but I'd want to be driving a G-Wagen or a D110. I wouldn't have chosen the patrol or J8 just because I've just never really been drawn to jeeps or nissans like I have to Cruisers, g-wagens, or Rovers. One of them may be the best option, but they just don't excite me like the other vehicles. I've always dreamed of driving a D110 across continents so that's probably what I'd choose, but 2 days into the trip I'd probably be trying to find a way to swap it for a more comfortable truck. The driver position just isnt very comfortable for me for weeks of long days behind the wheel. LC is more comfortable (sat in, never driven). Never been in a g-wagen but the thought of it seems pretty comfortable. Done some looking online and the 461 professional doesn't look all that comfortable either.
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I'd say they're all pretty similar when it comes to offroad capability with the D110 gaining some advantage with better wheel articulation and traction control (better turning radius compared to locked vehicles) but the LC76 and G461 gaining the advantage on steep climbs being fully locked (I'd guess the g461 is the overall fave here). I'd prefer coil over suspension on the rear axle in the defender compared to leaf springs on the LC76 for overall clearance reasons. Offroad I don't think there's enough difference to sway me one way or the other.
If I'm taking family with me I think it would be more comfortable in the LC76. 2nd row bench seems like a nice place to be. d110 isn't too bad either. G461 looks less ideal, especially for kids.
Hmm, this is a tough one. Is that the AEV J8 in the test or one from overseas? Because if it's the AEV, that may just be the most comfortable rig of them all, and capable, and good payload. Looks to be an awfully good option.
With all that said, I still think I'd choose the D110 or G461. Though I may be less comfortable overall and my stuff may get a little dustier(I've heard that's an issue with the defender), I ultimately think I'd smile more in one of these two rigs. I'd still choose to send my wife or sister in the LC76, or maybe the AEV J8.