Mobile Suit Gundam SEED, Zone of the Enders: Dolores, I Recommendations
Zone of the Enders: Dolares, i feels a lot like the Gundam that wasn't. Specifically SEED came to mind while I was watching it, probably because of their similar release dates so the animation in them is fairly similar. ZOE has a similar setup to your typical Gundam with Earth vs Mars (human conflict), but does have a good bit more humor to it. All in all ZOE feels a lot like a less ambitious Gundam with more comedy to it and does it pretty well. (Do be sure to watch the prequel ZOE movie first before the series though)!