Yes, I have listened to both pads extensively - the leather pads are more dynamic, have better bass, better separation of instruments and are punchier overall. The Alcantara pads are smoother and blend instruments a bit more seamlessly but at the expense of dynamics,
I don't find the top rolled off compared to the LCD4s at all - the Meze to me have just as much high end and although they have about as much bass too, they do sound quite different. To me the Meze are a bit more intimate, you feel closer to the stage, the vocals seem very close and clear, the LCD4s have a wider stage, more "air" around the instruments and are weightier in tone overall. I feel the Meze have as much full range as the Audeze but the Audeze feel like you're sitting in a bigger room, there is a hint of a reverb like quality to its signature. The Meze are drier, have more immediate focus and to me a bit better overall balance. I find at higher volume the LCD4s have a bit of higher midrange haze, the Meze do not have this at all.