Almost any of the a G6 cupsoles competed (easily) with the quality of Nike/Adidas/NB/etc. comparable models. Aesthetically pleasing or not.
OG-1 feels like a more boardfeely & nimble version of the Accel OG before the Accel '95 dropped to be a better version of the Accel OG. Flicks extremely well, and is pretty damn durable. Goes a little soft in the sole structure quicker than I'd prefer, tho. NEEDS an insole swap if you're gonna skate them, though.
Spanky Hi is an excellent cupsole, with or without G6. Fits well, looks understated, skates well, and lasts long.
Dickson was a great simple vulc alternative to any Janoski/Era/306/Buesnitz 2, etc. Close in terms of flick, durability, and comfort
KSL G6 Not the best looking to everyone, but skated extremely well, durable, flicked well, and held its structure for a long time. Some didn't like the *lack* of boardfeel in G6 soles, but that's subjective
Mute & KSL 3 feel like a solid version of classic meets new. Both feel comfortable on foot & seem to skate well from what I've seen. Plus, they look good in footage & fit in aesthetically with Cons/Nike cupsoles we're used to seeing
Emerica has put out actual quality skateable shoes in recent years, but for some they've denounced them. Especially for the price point they were primarily listed at. They've been far more "wide foot" friendly than the big athletic brands have been, and that's a huge plus in my eyes. I'll keep skating them as long as they work for my needs