So before voting I checked the old topics to see who I voted for in previous years.
2016: Chaves, Lopez, Bardet, Kruijswijk, Dumoulin. (Didn't vote for A. Yates, Landa, Porte, Majka, Pinot). Worth mentioning that DNP-Old half-jokingly mentioned Carapaz (who at that time was a complete nobody) in a post.
2017: Lopez. (Didn't vote for Chaves, Zakarin, Landa, Porte, Uran, Bardet, Pinot, Kelderman, Poels). None of the riders listed ever won a GT.
2018: Bernal, Mas, Lopez, Roglic, Kruijswijk. (Didn't vote for Carapaz, Landa, Porte, Bardet, Pinot).
2019: Lopez, Sivakov, Kruijswijk, Evenepoel, Pogacar. (Didn't vote for Buchmann, Alaphilippe, Landa, Uran, Pinot).
So turns out I voted for Lopez AND Kruijswijk every single time they were available in the past 4 years. Well, I think the ship has sailed for both.
Even if Superman is still young enough to have a shot, he has too many limitations to ever win one.
Kruijswijk has been a favorite of mine for a long time, but the new generation is just too strong and the routes are less and less suited to his style of racing. I truly hope he manages to podium a Giro though.
Mas looks like a very steady, solid climber, but he's a level below the top GT riders atm. I'm not sure he can improve to the point of winning a GT.
Never voted for Landa and never will. Too inconsistent and he can't cope with pressure.
Kuss might have a shot in the Vuelta but will always be vulnerable in hilly stages, bad weather, TTs, etc. Too monodimensional to win a GT.
Kelderman is an interesting case. I think Bora is a nice environment for him but he needs everything to go 100% his way to win a GT. Odds are against him, not voting for him.
This leaves me with:
Carthy - has a few monster climbing performances under his belt. I don't really trust him as a bike rider, his positioning seems questionable. I'm voting for him because I think he has a shot in the Vuelta.
Hindley - can 100% win a GT with very few TT kms. I'm voting for him.
Almeida - was amazing in his first ever attempt at a GT. He's a solid TTer, can outsprint most of the other GT riders and has great recovery. He also put up a hell of a fight in probably the hardest climb around (Stelvio). Give him a favorable route and he can win a GT next year a la Roglic.
Evenepoel - kind of a safe bet, isn't he?
BTW I would also vote for Sivakov, Vlasov and Kamna if they were included in the poll. Martinez is another rider I wouldn't rule out.