^ The layout of the Intamin Giga coasters so far is pretty much typical of a Mega Coaster (Banked turns and airtime hills) so I assume it fits in that catagory. The term Mega Coaster doesn't have any specific height requirements.
That's why i've voted Mega. I love the prefab woodies and the launchers too, but Goliath, Expedition Geforce and Millennium Force win it IMO. I wonder if my opinion will change this year though as if everything goes to plan i'll be visiting SFGAdv.