As far as performance I would choose the preminum loadings but for accuracy,NOBODY can tell for sure until you try the different loads from bench. That way,you know for sure and ain't guessing or going by somebody's opinion that ain't gunna be shooting your exact shotgun. There are always surprizes along with barrel/bore/rifling/etc differences.
Show me somebody that can tell you which load is going to be most accurate in YOUR gun every time and I'll show you a know it all or someone that posesses ESP. NOBODY knows for sure without shooting and comparing.