RQs are pretty different from Barons. TBH I didn't like mine that much, they just felt a bit low on cornering grip for their size and drag. Fantastic in a straight line though, bashing down fort william and the likes. But, less personal taste, they're an intermediate/dryish tyre, they're not very good at sticky mud- too cloggy, and not toothy enough.
<fanboi mode> Closer to the baron (though still a bit different) would be a Specialized Butcher. They're not as good in mud, but better at everything else. Sidewalls on the Controls are tougher than my Barons despite being lighter, and that's the lightest weight version, you could go for an SX instead which is basically a very heavy duty singleply. Phenomenal tyres- just what you'd expect really, it's the people who made the Minion having another go with several years more experience and progress.