Personally I prefer the fence to be as parallel as possible. I understand the advantages of the slight toe-out, and that is great for ripping, but if you use you home woodworking saw for lots of other jobs too, like tenoning, or if your fence tilts to the right (like most older saws do) and you then use your fence on the left, then that tiny bit of clearance works against you rather than in your favour.
I published an in-depth treatise on this several years ago, and I've never had cause to change my mind.
But whether you decide that toe-out or perfectly parallel is the way you want to set it up, it must, under no circumstances, be toe-in.