First off its probably best to realize now that you cant have everything in one set of headphones.
BUT i do recommend DT770 for your music choices, i have them myself.
Here is a guide we have all read at some point when considering Beyerdynamic.
Before reading it you should be aware of how minute these differences are.
The main differences to me were dirvability/power/
In order of amping with ease:
minutely more for the 250 ohm
600 ohm (not as hard to drive as you would think, but still needs juice.
80 is the only one with a slight design difference and really does sound different. A lot of dubstep and electronica people prefer it, but the mids to my ears are slightly more scooped- they arent in reality its an aural illusion caused by the boated bass frequencies extending beyond the usual DT770 subbass into a more crowded upper bass region.
I went with the 250, its easy enough to drive, had a curly cord, sounded great, and was in stock at my local store when i happened to be in the area looking for headphones a while ago.
I have demoed them all several times though. Personally i think the LE is good at lower volumes. At higher volumes when driven enough the higher impedances shine (SLIGHTLY).
Get whatever has a good deal on it.