Of the two, I think the 450h looks significantly better....the spindle grille, in particular, IMO, with its chrome bars, is much better done on the 450.
450h is how regular GS looks.. so it will look like that for GS2.0t and GS350 non-F-Sport models.
Yes, I'm aware of that. The only significant difference with other non-F-Sport models is that, like other Lexus hybrids, the GS hybrid versions have a blue-circled "L" badge on the grille and trunk-lids that both conventional and F-Sport models lack.