My standard boring response is
Superstar Nano Evo > Carbon Cyvles Exotic Alloy > wellgo mg-1.
All so far have been maintenance free. The mg-1’s are the oldest, the Exotics are 2 years old, the Nanos maybe 6 months or so old.
Mg-1’s have the smallest platform and are painted so look scruffy quite quickly. They’re now in my spares box.
The other 2 pedals are quite similarly grippy – the Nano has the small pins that came with them and are the grippiest of the pedals I have. There are longer (monster) pins that came with them if you wanted more grip. I think they have bushings and bearings as a mix.
The exotics feel like pure bearings and have stayed immaculately smooth – although one axle seal is looking a little scruffy. Bargain £10 for a rebuild kit on those.
So I’d go Nano if I were buying another new set of pedals now, unless budget were an issue – in which case I’d go Exotic as they’re usually cheaper.