First I have to clarify that although we agree to some extent, I don't think that I am hearing exacly the same how @average_joe hears SM3. Because @avergae_joe is using better tips, and I am using stock tips. @average_joe is so generous that he sent me some Sensorcom tips, while I like those tips my SM3 has broken so I didn't spend much time with them.
Okay, I sent out my SM3 today, for repair. And there was much space left inside the parcel carrying SM3, so I throw in a pair of ear impressions. And I have sold my e-Q7
Now I don't have them in my hands.
I was using stock tips with my SM3 when I did my comparison between SM3 and e-Q7.
SM3 with stock tips compared to e-Q7 with Sony hybrids, all based on memory:
- SM3 is a little bit veiled in the midrange, as compared to e-Q7.
- Instrument separation is better on SM3. By the way, I don't really think that e-Q7 has good instrument separation.
- Vocals, especially female vocals on e-Q7 is magical, and actually in some sense, more musical. I really like female vocals on e-Q7. Vocals on SM3 is more accurate, natural, has a fuller body, and warmer.
- SM3 has more bass qunatity compared to e-Q7.
- SM3 has a more laid back treble compared to e-Q7.
As for bass and treble, I don't dare to comment much, as I don't have a strong audio memory and I am getting used to Radius DDM

Actually I double check by listening to the phones when I write comparison. Since they are not with me anymore, ...The points above are those that strike me the most when I compared the two of them.
I think I shall refrain from commenting further until I get back my SM3 and try them with some Monster triple flanges