I have not seen GQuuuuuux, but a friend of mine has, and he's told me a lot about it.
My favorite series is probably Gundam Thunderbolt. (Still waiting on Sunrise to animate more of the manga) I'm a bit of a UC nut, particularly the OYW. So I haven't seen a lot of the other non UC media.
My favorite mobile suit is probably the Zock. Giant amphibious cactus.
Though I'm also quite a fan of the Super Custom Zaku F2000 from Gunpla Builders Beginning G.

I just wish it was green, like a normal Zaku.