From what I've learned the body's rate of aromatization is dependent on the state of the HPTA not the AI use. So for instance, you have patient A who is a non steroid user with a perfect balance in his HPTA. He has no disorders to his endocrine system no disorders to his HPTA. Therefore his rate of aromatization would be relatively low.
Then you have patient B who is a heavy steroid user. In particular he is using large doses of anabolic steroids which have high estrogen conversion rates.
Aromatase Inhibitors merely block this enzyme or permanently binds itself to it through hydroxylization. Neither mean that the steroid use stops aromatizing because it will continue to happen as long as there is active exogenous hormone in the body. Hence the need for homeostasis brother. The HPTA is under attack the entire time you're on cycle. It needs and wants homeostasis. The only way to counteract this attack is to fortify the defenses. Aromatase Inhibitors. They don't create more enzymes, in our particular case the steroids do that. The way you describe this would indicate that my dose of Aromasin would likely need to increase over time. If more enzyme were created from its use then eventually I would need a higher dose to counter sides. That has never ever been the case for me. My rate of aromatization is established. I've run some pretty crazy cycles and I know my dose of Aromasin works.
I would say neither Adex not Aromasin is particularly better than the other. I'd say until you've run both you won't know which works better for u. That's the key here. Which is metabolized by the body more efficiently and has less side effects. Since I haven't read anything that AIs are responsible for the creation of Aromatase enzymes I can only assume you might have this confused with an E2 rebound. That normally happens when someone discontinues Adex or Letro while there is still a lot of exogenous hormone available. Also when Adex and letro are discontinued the enzymes that they had been blocking are now free to attack the receptors. Aromasin because of its suicidal properties has much less instances of a rebound. But that doesn't make it better ultimately. It may not work with your body's chemistry. For some it crushes all E2 and hurts their gains. It's a personal choice brother.