I sold the LCD-2.2 about two days after the LCD-3 landed. Right off the bat I could tell the LCD-3s was the superior headphone. To my ears they fixed all the issues I had with the LCD-2.2.
Right now the LCD-3 and the HD00 are tied for my second favorite headphone. Since the GS-X mk landed the HD800s have been getting the majority of the headtime though. They're just a great match.