My preference, which is heavily influenced by the fact that I took a preemptive gyno surgery, is to avoid SERMs.
In more recent years I've started to use arimidex at times.
And I see the value of AIs, that's for sure.
However, with no risk of gyno, I prefer E2 levels to rather be a bit high than a bit low. So depending on how much test I use, and the presence of aromatizing or non aromatizing AAS, I can sometimes go without.
Regarding hCG, yes I've cruised for long times without it, and hCG certainly seems to increase E2 conversion in me.
But, after a long run without hCG I can almost feel the shot within hours/days;
HCG seems to boost the immune system and "revive" me in a way.
It feels good!