of course i read your post; the original post was about the efficiency of the various techniques! i generally prefer the shifting technique, perhaps cause my editor nicely syntax-colours the my's. 90% of the time it's purely aesthetics, though sometimes one method will lend itself to a particular technique; such as when the second or third argument is a (long) list or hash. TIMTOWTDI.
besides, it's going to be a moot point in perl6; everything will be named in the method signature.
but i agree. readability and maintainability are almost always preferable to 5% faster execution. there's no way i could hold a team of 6 and 100K lines of perl together if i didn't think so :-)