A lot of people reverse the ideas behind the gear available. If you're pure str - go garment since you already have the high hp/def but you have crappy mana/magic resist. If you're pure int - go armor since you lack the hp/def and already have a wicked mana pool. Hybrids tend to go borderline protector or lean towards their hybrid-heavy traight.
In the end, it all boils down to personal preference.
I somewhat took Fly's advice and dumped my garment and went Protector (he urged me to go to Armor, but I can't stand how it looks, I just can't *LOL*), and damnit, I'm using less pots. >.<
