Iron Golem - Best to make out of?

[Striker]

STRATEGY:  Make a quadrouple immune golem (if you have, say, +20 summon skills, then you will have level 21 summon resist.  Subtract that number from 100, that is how much you need on a shield to have a golem immune to Cold, Lightning, Fire, and Poison.  ***cold piercing makes no difference to an immune creature

I remembered something awhile back about summon resists and quad-immune golems, so I dug around the old forums and found this:

Amazon Basin golem tests

Just some more food for thought.