If you haven't seen it yet, you should check out
http://wiki.project1999.com/Cleric#P...the_Right_Race. If you do you'll notice cultural armor isn't really mentioned as a distinguishing factor because ... it's not.
ESPECIALLY here on Blue, where the server has been going for over a decade (vs. live's two years for the equivalent period), all gear (except stuff like Fungis and CoSs) is much cheaper than it should be. As a result, almost no one buys cultural except for the look: there is just too much other, better, armor available. So really you shouldn't even worry about it.
But to answer your question, the Dwarf armor is generally considered better because people consider Stamina also (dead clerics can't heal anyone).