[OT] More George Lucas bashing.

[PvK]

In general I agree that walkers are usually a poor choice for a fighting vehicle. However I think the AT-AT's can sort of technobabble their way out of being completely unbelievable by saying they have shield generators which due to their large hull can be strong enough to negate most or all expected incoming firepower, but which would be too heavy to cheaply put in a hovering vehicle.