I would say the G1 Insecticons, though they have better limb movement then Armada Megatron/Galvatron.
The G1 Insecticons have outward and forward shoulders, elbows, swivel forearms, swivel necks, swivel waist and outward leg movement?
When G1 Kickback can have legs that can go forward, while Armada Galvatron looks like its taking a dump in the leg movement range. I kind of find them less brick like, given even Optimal Optimus could pull that off with four alt modes.
Sixshot is the undisputed king of the bricks. 6 glorious brick modes which I adore. Glorious colour scheme,too.
Define the term brick, I was always under the impression a brick was one that was bulky and had little poseability, for me usually the arms. Under this description I would say Powermaster prime was definately a brick and won't say G1 soundwave was as some people in this discussion have stated. Is my take on the terminology correct?
Aside from the bulky part. "Brick" leads more to the fact that the toy doesn't have much for articulation outside of those necessary for transformation.
Mine doesn't. *has kitbashed his Armada Megs* But he's not a brick. He's built like a brick, but he's plenty posable.
Within the definition of a 'brick' as I would define it (i.e. no articulation except one single arm articulated movement at shoulder OR at elbow), I'd say God Ginrai or Star Saber is my favorite. I have also learned to appreciate elbow-only movers like G1 Sandstorm, Galaxy Shuttle and Doubledealer, although I'm pretty sure that I would have been very disappointed in their articulation if I had owned them when I was younger.