Any breed of cat, even though they are supposedly bred for a certain temperment, will have individuals at all ends of the personailty spectrum. you cannot guarrentee personailty just by buying a full bred cat.

I have never lived with a Persian, a Himmy or a Maine coon, but I work with them. And I have experienced all types of personalities within each breed.

So don't disreguard the "common" domestic as a possible new kitty for your future. You are just as likely to get a great love bug who simply has no pedigree.