I think he and Leota are similarly matched and when Moses is hid age will be well and truly ahead of him. Only Tetevano would be worth more due to coming from a glamour club.
Moses has come close to kicking on a few times then got injured. Fingers crossed he kicks on in 2020 and Tetevano becomes our 4th ranked prop. I think people forget just how much better players can look in good teams aswell.
Factor in our laid back fitness system, an inferior coach, a lesser pack around him and not being liked by the officials... Tetevano could very well be a plodder with us. Players often thrive in a particular system only to struggle elsewhere. Adam Blair is arguably the best example of that. No coach or team has gotten him performing the way Bellamy did at the Storm. I doubt Tetevano will follow in his footsteps. But I dont expect him to perform any better than being a solid benchie.
Moses averaged 68m last season. He is a solid NRL prop but he isn't better Tetevano or as good. Maybe he surpasses Zane one day but he hasn't reached him yet.
Yes it is very possible tetevano gets worse for numerous reasons, it is also very possible he gets better I mean people trying to say one is more likely than the other are just revealing their bias. All reports are he is professional and works hard now so lets see how he goes next year before deciding he was overrated due to the roosters.