I'm at least a little more familiar with Gundam Wing, but I never bothered watching any of Geass, it never really interested me much. i don't really know why. Maybe just the art style.
I think also it hit at that point in time where i was having a hard time really getting into anything with that particular sheen of digital animation that was pervasive at the time, that kinda plastic veneer that stuff like Gundam Seed/Destiny had.
we're kind of in that era again with the pervasiveness of CGI anime, stuff like what netflix keeps doing. I'm still mad they're doing that with Drifting Dragons of all goddamn things.