I've give this a go. Please note I'm not going by sound quality alone, but all factors like fit, comfort, build, cable, etc.
1. RHA MA-750 - (a little too much sub bass at times, but the most comfortable iems i've ever used).
2. Westone 4R - (best sound quality I've experienced, but cable and ear hooks are pretty weak, comfort not as good as RHA)
3. Shure SE215 (too bloated in the bass, but otherwise a fine sounding iem with good buld quality)
4. Hifiman RE-400 (good sounding, but cannot get them to stay in my ears, build quality is not great)
5. Nuforce EDC (too much bass, but super comfortable)
6. Xiaomi Piston 2
7. Sony MDR-XB40EX
8. Nuforce Primo 8 (fit and build is fine, but upper bass and lower mids are veiled in a wierd way)
9. Sennheiser CX300-B
10. Apple poop pods
Update 2:
1. Westone W30 - (slightly brighter than the 4r, but with better bass slam, just as comfy)
2. Westone 4R - (smooth and dark with emphasis on midrange, a little sub bass shy, cable and ear hooks are pretty weak. An aftermarket cable does wonders, super comfy in my ear)
3. Ibasso IT01 - (just got this earphone in, amazing sound for the price, great cable, isolates well, good for EDM and Rock)
4. RHA MA-750 - (smooth and warm, but more sub bass focused which sometimes muddy's up the clarity of the midrange, great build quality)
5. Shure SE215 (too bloated in the bass, but otherwise a smooth sounding iem with good buld quality and excellent comfort and isloation)
6. Hifiman RE-400 (good sounding, but cannot get them to stay in my ears, build quality is not great)
7. Nuforce EDC (too much bass, but super comfortable)
8. Xiaomi Piston 2
9. Sony MDR-XB40EX (good clarity, but too much bass overall)
10. Nuforce Primo 8 (fit and build is fine, but upper bass and lower mids are veiled in a wierd way)
11. Sennheiser CX300-B
12. Apple poop pods