Remember that some folks here consider the ~2006 Mk5's to be the most luxurious TDIs -- leather seats, etc. Then they were 'decontented' for the Mk5.5 Sportwagens. Mk6 Golfs are still pretty nice, but still are lacking some of the old goodies. Mk6 Jettas are obviously more decontented, with hard plastic door panels and dash.
Honda recently got a lot of criticism for the newly refreshed Civic. Apparently it was stripped down for cost, and got a beating by the auto press for being too cheap. I've also heard that the latest generations of the Honda Odyssey and Toyota Sienna minivans are not as nice as the vehicles they replaced.
Due to the recession, there has been a big push to make cars cheaper, and quality has taken a hit.
While the Passat came out with great reviews (and I think even a 'car of the year' award' from one major auto mag), I wouldn't assume that the next generation Mk7 Golf will necessarily be better.
There's also something to be said for buying a mid-to-late-production-run vehicle. The bugs have usually been worked out by then, and you get a better car than if you'd bought one in the first model year or two. (I work in auto design, so I'm part of the problem
)