It's definitely dated. It doesn't make me love it any less, in fact sometimes things sounding dated is a good thing, at least if you were around at that time.

I'm not sure about Graduation or MBDTF (too soon for that) sounding dated, but Dropout is for sure. Late Registration I'd be iffy calling that dated as well, but I could understand something calling it such.

But again, dated =/= bad. I still love the shit out of that album.