Well not to sounds like a dick... but hopefully if you controlled your estrogen on cycle with an AI (not a SERM), it shouldn't matter which is better at "aggressively" fighting gyno, because then wouldn't have it in the first place. I don't know that much about using SERMs to prevent/reverse gyno.
But, for HPTA restart/restoration, I would just pick one SERM your body agrees with or you have access to and go with that. I prefer clomid by far, many others prefer nolva, they are both effective and I don't really see any need to stack them (in fact it is probably counter productive if your goal is getting back to homeostasis), just use a reasonable dose of one of them and taper down throughout PCT.