it is hard question
I have same dilemma

I think third one is Steel Grey ( some countries gives different name tenorite grey is palladium here )

my hard choise ;

1- palladium silver
2- iridium silver (it is every time looks clear and best market colour )
3-Steel grey (you called it Tenorite)

my current car is ObsidianBlack and it hard to me too much