Star Brite do loads of different products, you can’t compared a restorer to a polish so I’m not sure exactly which star Brite product you are comparing with.I have Jez's old restorer & some Starbright it's better than the Starbright, looking forward to the new one. The only one I've found better is the 3M but that is no longer imported to the UK.
star Brite also do restorers with different cutting levels in them. The polish they do also comes in different variances, I have the tub of marine softened polish and a few of the bottles with ptfe.
Star Brite are excellent products, I still have most of a bottle of Jez’s original restorer from years ago, it’s ok but star Brite restorer is much better depending on what strength compound you order. I used the medium.