This arc, Oda made it clear with Kaido that base human form is the second strongest, zoan form being the weakest and hybrid the most powerful obviously. Most of the calamities feats are in their zoan form which is the lower from the 3 and none of them have gone serious in base form so far as there were no named attack in base form IIRC.
No, that's Kaido. This is not a universal thing.
Zoan Ulti is much stronger than Base Ulti and has more raw power than even her Hybrid form.
Zoan Page One is much stronger than Base Page One (Base Pay Pay has no notable combat ability feats to speak of).
Base Queen has done nothing impressive. All of his notable attacks have been in Zoan.
Base Jack wasn't impressive either, but he's less clear cut.
Yamato's best feat is one shotting a giant with a flying attack, it was very impressive but it's not an indication of her superiority to calamities.
No, her Best feat is oneshotting a Tobi Roppo:
There's no indication that the Calamities are capable of that, especially not in their Base forms.
Most of the calamities feats are in their zoan form which is the lower from the 3 and none of them have gone serious in base form so far as there were no named attack in base form IIRC.
Nothing of the sort, their Base forms are simply not that strong.
Zoro got 60 million for defeating an opponent much weaker than Kaku and Jabra, unless you beleive that Daz Bones is as strong as them.
I disagree. Jabra cannot defeat Daz Bones. Kaku would be able to if he could cut steel, otherwise no.
Daz Bones' own bounty was 75 million anyways.
If Jabra was as powerful or more than Kaku, Sanji's bounty would have raised accordingly to Zoro's 120 million regardless of first bounty or not.
Kaku is significantly stronger than Jabra.