I wouldn't worry about prestige or not prestige considering my Ibanez is MiK and it's better than 99% of the Prestige's I've played - Certainly the ones below £1200.
The ZR Trem is awesome - So don't worry about that.
Looking at the spec I'd go for the S, but personally I love RGs, although Basswood body doesn't sound as good as mahogany imo.