I liked Mike Douglas because he would have a guest host for five days in a row, so you really felt like you knew the person better after seeing them all that time - 90 minutes a day, 5 days a week.
But he wasn't very interested in some of his guests, and his writers were not very good with the sketches the guests were featured in. I remember especially a terrible sketch with Butterfly McQueen that humiliated her and made her repeat her "birthin' babies" quote for GWTW.....
Of course some celebrities could use a reality check.....but it wasn't usually those people that MD would run over.....