normally the HND 747 is flown with the refreshed herringbone, which is really not bad of a product to catch some nap on.
meanwhile, the 10am NRT flight most of the time is flown with a 33G, with the FB2 product. but if this is a one time thing and you want to try out the CX product, i would go with the HND flight instead.
in regards to the 330, CX has retrofitted all longhaul with FB2, while the regionals are undergoing the new regional biz "seats"
the 9am NRT flight is 99% flown with the new regional 773 if you are flying with a companion, i actually prefer the "seats" if i am flying with someone else.