Hey Kcoc,
I have used imr efest 2500
mah 35amp,Imr Vamped 2300mah 40amp, imr Mxjo 2500mah 35amp along with the sony Vtc3,4, and 5 and the LG brand. I vape on a nemesis copper clone and my go to rda is the CigGreen X with a duel parallel sleeper build each side has a 3mm 24 gauge 5 wrap which puts me at about 0.24 ohms. Out of the 4 non sony battery's I have personally used this is my findings and my 》opinion《 :
LG = worst
Efest= not the best
Vamped= hits hard but doesn't last
Mxjo=hits hard and lasts the longest
Sony= vtc4 is by far the best.
Hope this helps I would go with the Mxjo.