if your長遠 means resell value, probably acura mdx.

I have xc60 for two years, so far so good. As it has 5year/6k mile warranty, I would worry too much for now. By the way, I think acura mdx is crossover, like xc60 but a little larger, while xc90 is SUV, you may compare it with honda pilot.  My two cents.