If one is a domain you have had for a while and its listed in google I would go with that Just my opinion. (I try very hard to not talk about so shit on this board but I couldnt help it) Any wankers come and chew me out I will be pissed off!
No one will chew you out here. Besides when it comes to seo, the jury is out on most issues - which can change at the drop of a hat.