The orc has a lot of con which is nice for poling but he doesnt have AOE stun and isnt totally pole oriented. Which is a good thing if you have a lot of adena. The destroyer is fun cause you have options with your weapons.
The Human Gladi has basic masteries but it will get gradually less effective. and no aoe stun either. Warlord is Intense pole user. Specific pole self buffs, the only AOE stun and wicked mastery lvls etc, less con then the Orc but yeah knows...
The dwarf is realy fun for poling and a great way to make money. No real skills other then Whirlwind. If you go arti you have those great summons to mess around with and can work teh crafting market. If you go Bounty Hunter expect to be wanted for only certain parties. Spoiling is sweet if you know what to do with ur spoils.