So I eventually ended up with the LCD-2 Fazor.
Currently I own HD600 (for very long gaming sessions if not using speakers, most at night time), the LCD 2 (My favorite HP over all, when possible I use this one) and a HE-400 that I barely use anymore (its going up for sale).
I did test the HD700. They sounded very good (better than the HD600), however the highs were to loud for my taste in certain areas. It was very cool to hear them so well, but I was noticing the potential long term annoyance.
In the end, my audio chain is Multibit Bifrost, Asgard, LCD-2/HD600.
I also use the LCD-2 for portable (mostly to work and when going to visit someone) and most of the time id say that If I did not buy the LCD-2 and stayed on the HD600 Id be happy as well.
In other words, I am kinda staying here. I might test a cheap electrostat for fun one day in the future, but I doubt I will be looking any further (I know I have said this before, but the LCD-2 was purchased about 7 months ago)
In fact I like to listen to speakers many times over HPs.
This thread hasn't been too active, though it is IMO one of the better comparison threads on head-fi. Awesome to see you followed through and got the LCD2s and still have them.
I still have my pair, and though I've been tempted by HD800 or trying an HD700, honestly I feel
@Windsor summed it up well about the LCD2 "that is has the most realism" of these headphones, with a bit of it lost in its treble area. But even in the treble department, there is detail, it is more its presentation that makes you sound like you are listening a bit in a hall or chamber. Realism on my LCD2.1s I feel is quite unmatched. Not all LCD2 or LCD3s I've heard sound quite the same. I've heard a pair of LCD3s that were absolutely gorgeous, better than my LCD2s, but still mine had a certain character, a bit more forward, and less romantic.
Right now listening to Grieg & Schuman Piano Concertos (Dohnanyi) a 1963 recording that is incredible. It makes you realize the art, not just in the music but also from the recording engineers. Multiple moments, where your thoughts just stop, you are frozen listening to the music. The LCD2s are able to do this in a way especially for chamber classical and jazz. I mentioned in another thread, a key to the LCD2 is getting the right placement on your head, make sure you have adjusted the connector rods properly.
I like speakers as well, but can't enjoy them (cats, condo, no treated room, would annoy my SO, having to sit in the sweet spot, etc). So I gave my high-end speakers to a friend where I can go over and listen to them
Even still, I've become a headphone listener as I prefer the direct-to-ear transients even with the loss of a proper stereo field.