What creates more TH and vapor are the
e-liquid and
power (measured in watts).
E-liquid: Nicotine level has a significant impact on TH. VG tends to increase vapor and, at lower watts, I find that thinner juices are best.
Power: Is a function of voltage
and resistance, thus the two types of recommendations you have been receiving. The formula is Watts = Volts X Volts / Ohms.
So a lower ohm atomizer does the same thing as a higher voltage battery. I suggest going in either direction (but not both simultaneously) in baby steps. MortenT's recommendation is a good one: try
Ikenvape's (currently out of stock) or
IndyVaporShop's 2.0 ohm 510 atty, before diving all the way down to the 1.5 ohm LR attys. Or, as Sojourner implied, a true 3.7V battery (which starts at 4.2V fully charged) will have a noticeable impact over the 3.2-3.4V eGO.
Even
mAh has a subtle impact on power. Since batteries start at a higher than their nominal voltage: the higher the mAh, the longer the battery stays at the high end of the range. If you find that the first several puffs on the fully charged eGO battery are sufficiently satisfying, you may want to try the new 900 mAh mega eGO batts.