I was thinking this the whole time I was reading all of these posts. It's much more the exception, rather than the rule, to kill a 150" typical 8pt. I did see one that big in Alberta though.
Whichever one come charging in to some calls! I'm all about shooting whatever excites me at that moment and having one react to calls usually does it. Other than that, any 4.5-5.5 year old buck will do it for me!