I'm not a total basshead, but I am looking at two headphones that I know have been discussed in this thread. I can currently get the Pioneer HDJ2000 and UE6000 for around the same price and I'm having a hard time trying to decide which one to get. I listen to just about every genre, with indie, singer-songwriting, and hip hop being the top three.
The DT770 is a great headphone if you can stretch to it. The bass is REALLY good but the mids and highs are nice as well.
+1 on that.
The DT770, 880, and 990 all share the same drivers, the 770 gets the 80 ohm version to itself though. If alexv131994 is going to go for any of those beyers, he just needs to decide what's better for him. The 770 isolates VERY well, and 880 has good, deep bass and has a more natural sound than the other 2 overall, and the 990 has more of a V shaped sound, deep bass and bright highs with decent mids.
If you aren't a basshead, I would recommend the DT880 250 ohm if you can stretch it or find a used pair. I loved my pair when I had them and only got rid of them to try new things.