Conditioner left in (HEHH) + Shea butter = slight poppage
Amla and Olive Heavy Cream (only a little) + Shea butter (again, a little) + a clear gel = wonderful poppage
Oil rinsing + Conditioner left in + a bit of shea butter to seal = super-soft, shiny poppage (if that makes any sense...)
For me, gel gives the best definition, but I'm less and less partial to it. I prefer just conditioner and shea butter--it gives me good moisture, and never leaves my hair feeling product-y (I hate that feeling!)