i use hooks from #2 to #8,my wife uses a long shank #2 for gills and chinks with live bait .
i tie a few flies for gills and chinks in #2,but most of my larger flies are tied with #4s. i tie a lot of xxx#6 light wire for tresterials,ie caterpillars ,hoppers exc.
i use #8s for small nymphs,and a few drys,i find i get better hook'ups on #4s on big gills and chinks although you would be surprised how many little gully perch you can catch on a #4.
gators like chicken