YG are definitely produced in high numbers, but that's part of their appeal. They are accessible, which makes them more collectible by the masses. S1/S2 is also the most likely set to continue production into the future. It's considered the true core set in hockey right now, the same way opc was in the past. If you want exclusivity, you can always target the exclusive or high gloss parallels.
Ice is popular now, but will anyone care about the set in twenty years? Premieres could just end up in the pile of gimmicky cards. What happens to value if the line is discontinued? This, of course, is all speculation, so I could end up being totally wrong.