My Prefs
Best - Test 3
Second Place - Test 4
Third Place - Test 2
Least Best - Test 1
To me, there was no clear winner between 2, 3, and 4. I found it especially hard to choose between 4 and 3, I ended up going with 3 because I perceived a bit more detail. I liked the balanced presentation of 4, though it could be that 4 seemed to have a bit less volume than the other three.
I listened through a Fosi Audio DAC-04 and Sennheiser HD-700.