Beyerdynamic DT 990/600 Ω
Here’s a vote for the Beyerdynamic DT 990/600 Ω. The Beyerdynamic DT 880 sounds more neutral and flat, but the pronounced treble and bass of the DT 990 makes listening probably more enjoyable. This of course depends on your preferred music and your personal taste.
Generally Beyerdynamic headphones have sparkling treble, great dynamics and fine separation, while Sennheisers sound more warm and laid back. All Beyerdynamic models I know are very comfortable to wear.
Werner.