I guess I can be guilty on ignoring this one also. I have posted a ton on the VP150 vs the VP100 as I have both and have done side by side tests etc...........If you missed it, there is squat for difference. I have never heard the QS4's so I can't help there. I have had the QS8's but I sold them as they didn't do it for me with music and went with the M3's. Big improvement with music!

If the above are my only 2 choices, option 1 it is.