I very much agree on the subject of Düsseldorf. They are very musical, dark hued, much clarity. And they have a very big advantage over the other German orchestras: nobody saw them coming! They took us by surprise, and what a surprise it turned out to be. Mahler wasn't exactly a standard on the menu there... (certainly not on disc). Fischer's most acclaimed recordings to that date were probably his Haydn symphonies. Mostly very thrilling, though even Adam Fischer couldn't resist the trend to fiddle with dynamics (in a very arbitrary manner). I don't hear that at all in his Mahler. Everything is very natural, but never ever boring.
I really feel that Paavo is a better conductor than his father.
No argument here. The Residentie M7 was weird. The first and last movements were what we might call 'normal' in duration, but they sounded much slower when compared to the hurry of the middle movements. 13 minutes for the first Nachtmusik, and not even 10 minutes for the second Nachtmusik. It can be very interesting to be on the fast side in M7 (Kondrashin in Amsterdam, for example), but without due consideration for structure and proportions, Järvi's recording simply sounds incapable.