I love Velvia for people as long as you know how to use it. Knowing that it can be very warm, I can use it without filtration around water, and anywhere in the afternoon as long as the surroundings are not warm-toned like brown rocks. Can't use it at or close to sunset, nor do I use it in studio (my strobes and softboxes are a little warm) but I do use it with unfiltered ringflash because the ringflash's color is so cool (slightly blue). Now I like warm skin tones on the models anyway, so if necessry I can tweak it in PS. Here's three examples of Velvia 50 (I haven't used the 100 yet) with no filteres. The top & middle shot have only daylight and a silver krinkle foil reflector, bottom shot is ringflash.
My new normal film (any time Velvia won't work, all other interior shoots, shooting at sunset) is Provia. I had a big problem recently with Astia (I did a big post on that recently) so for the moment, Provia it is.
Andy Pearlman Studio