I'll choose Earth Federation's RX-77 and RX-77D Guncannons for this. For a really simple reason that i'm a big Space Runaway Ideon fan and these machines looked a lot like big old Ideon. They looked a bit like D-2 from Metal Armor Dragonar(another favorite mech flick o' mine) too, without the wings of course.
i saw the head shot il never get on his badside now it was awsom i think it was the best head shot in the history of gundam
I bumpedded my head 98% of AO members are yaoi or lollicon fans. NOT. where all 100% anime fans GO ANIME, ANIME YAHHH
the bazooka even shot a beam, it seemed like. i know it didnt, but it looked cool.
anyone remember in Gundam 00 when Setsuna was intervening in the (i think it was morolia) conflict, and the teriens decided to run away, exept they just kinda walked away? so crappy, yet thats probably what we would end up with in RL. and notice how the uber-old skool Anf or whatever made a deisel engine noise when it started up in the one episode. a far cry from a minovski reactor.
"You will only have eyes for Me!"