I'm replacing the lighting fixtures in my master and guest bath. They both have those horrible hollywood light bars now above the mirrors. First question is, which is better, down or up lights? I like the look of the down lights better but I don't know if that will produce a glare off the mirror. Second, my master vanity is 87" long and I just want one light fixture centered over the mirror, which is the same length as the vanity. Should I get a 4 or 5 light fixture? Thanks!