So, I missed the glaring oversight on your part. "7 passengers"
This is not an apples to apples comparison.
LC100 - Personally, I would not want to sit in the LC 3rd row jump seat, at all, maybe, maybe if I were stuck on the side of the road 40 miles from nearest town and my GF had enough of my crap and left my to walk, then, I'd gladly ride in the LC jump seat. I owned an 06 LC so I know the seat design. I DO wish I'd kept that vehicle!
Sequoia - I know from poking around in them that the 3rd row has more space, but is still not all that great.
LR3/4 - now, here is one are where the LR3 shines, the 3rd row is actually designed such that a 6-4 person can sit there and anyone 6' or under can be quite comfortable even on a long day trip. There is plenty of foot space and your feet are below your bum, not like in the LC jump seat where you're mostly on a cushion on a floor with knees in chest.
The lr3 really does well in the area of interior spacial design. Not only do you have a true 7 viable seats, but they are easy to access and the all fold away leaving the cargo volume open fully, unlike the Toyotas where the 2nd row seats are still right there in the way, just folded against the 1st row. To me, that is not very helpful.
Then if you compare all 3 with seats removed....the lr3 is just nuts for what it allows.
I guess you have to weigh the aspects of all 3 because the lr3 is clearly "better" in some ways. Is it reliable enough? I don't know. The people with 100,000 miles will say, "yeah sure" but what about the people who say "my extended warranty sure paid off".
Maybe the LC is honestly the best overall mix...