I think I wanted Cayman just as it seemed a bit safer for banking options instead of the others but that was just my impression and not based on real world experience. Would be good to know though as the likes of all these seem to have a bit of a bad rep and I would rather lean towards something a bit more safer and less risk
It really depends on your business and how much money you have to bring to the bank.
If you keep nothing on the account, they don't make anything.
Cayman is one of the best jurisdictions because it's got a lot of assets under management on the island from all the funds and all the holding companies for Chinese companies, etc.
It's also got less privacy and more regulation than e.g. BVI.
But it's excellent because it's basically 'too big to fall' since it's not like you can move all that money off in an instant.
Great for hedge funds, etc. everybody is familiar with it.
So when you go Cayman, that's what you're paying for.
If you're looking for cheap, you don't want to go Cayman.
You must bring something for the banks. Some kind of compensation for them having to put extra attention on your account, etc.
Offshore is the opposite of cheap. It's not. You do it because you have to, or because you're big enough that it makes sense to do tax dtructuring. not because it's an easy way to drop your tax rate to 0%.
And there are substance requirements etc. that you must meet.
Do not go pay for some cheap formation, especially the ones that claim they serve all the locations. Contact a boutique law firm and buy an hour of consultation to get an idea of how things go.