Mine is pic related, the Victory Gundam. What I like about it is how modular the mobile suit is. It's the result of years of ms tech late into the Universal Century where now the Gundam is mass produced. In the show the rebel forces are shown to have a stockpile of Gundams in a bunker so they can burn through parts.
Honorable mention to the RX-79 G ground type Gundam from 8th MS Team.
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Jokes aside, I'm a pretty big fan of the Turn A:
And the Gundam X has a cool asymmetrical thing I like:
I like the Zeta a lot, too, but that feels like a basic b choice.
I like the custom zeta from gundam sentinel
The Amuro Karaba Zeta does have a cool color way. I think it was in Green Divers?
In my rush to meme about the Fidel Gundam, I forgot about this dope one.
Everyone's favorite Sailor Moon Gundam.
Allenby is pretty much Four from Zeta combined with Milia from Macross. Add in the Sailor Moon Gundam and you have three cool anime girls in one character lol.
Are the rocket nozzles on the red bow functional?
I'm guessing they're meant to be some kind of heat vent for the berserker mode, but I don't think they obviously do anything in the show