That's my opinion. I would never even consider a highlander, but I love LXs. They are the highest quality vehicle that Toyota makes and Toyota even says that every part and component in those cars is the best there is. The interior of an LX is not meant to be ultra modern, it is meant to be refined and comfortable. I think it is one of the most beautiful interiors there is, even if it is an older model. The interior of a Highlander looks and feels cheap compared to the top of the line Lexus.
A Highlander is better than a lot of cars, but if it were my choice, I would go for the used top of the line Lexus (which everyone in this forum knows is one of the bet vehicles ever made) than the middle of the road Toyota.