I wish.
I don't really watch mecha, so I don't keep track of every mecha that comes out, but don't most do relatively well? You have those that sell a ton like Gundam and Geass, you have those that make good numbers like Star Driver... even numbers in the 4-7k range like Aquarion EVOL and Eureka Seven AO are still better than a lot of ecchi harem.
I guess EVOL and AO have more effort put into them than the average ecchi harem, though, but that never means anything anyway.
But have any of Toei's other shows varied as widely as Saint Seiya Omega, from the ultra-beautiful Umakoshi episodes to the ultra-ugly Z team episodes?
I skimmed over some of the animators and some of the episodes to see if there's anything I missed, and Ohnishi Youichi (I've never heard of him, so I grabbed his name from ANN) does an okay job. It isn't Umakoshi level and it still has its share of off-model shots and wonky animation, but it's not all awful like a lot of the other episodes. More importantly, he gave us this.
Excuse the choppier-than-usual framerate. It's not my fault, I swear! Dumb 30fps-encoded video files!