Somalis. Veeshan is the top cat in my house and I already see dominant behaviors in Kingston even though he is young. I think this is why Willow (my once dominant domestic) does not get along with either Somali.
I don't know if it's just Ollie (probably, since he's spoiled) but he usually demands to be the center of attention and I know he thinks he rules the roost.... red/orange tabbies aren't really a breed, but I have heard various accounts of different types of domestics having different personality traits
I have one Cornish Rex/DSH cross, and one Oriental Shorthair, and both of them are very dominant personalities. They are still in dispute about who 'owns' the living room windowsill and I am not sure either one will give in any time soon! Both want to be the centre of attention and in charge at all times!