Doll Photography Lighting Questions - What light kit is best?

I don't think that there is a "best"!
You might share some of what you're looking at and we can
offer our opinion on them.
Personally I dislike CFLs because both color balance and
brightness shift for the first 10 minutes or so after you
turn them on. My personal preference is LED lights.
My primary lights are LED panels.
Wattage is almost meaningless as a measure of light
intensity. A 10 watt LED, a 33 watt CFL and a 100 watt
incandescent might be reasonably comparable. Your
wattage and your light output will assuredly vary.
As will your color balance.
If you get more than one light, and I would recommend that,
get similar ones so the coloration of those lights is at least
similar. Else your color will be ugly.
Light kits are sold for photographing people. Dolls are smaller.
You don't need nearly as large light sources for a doll as you
do for a person and you can work with the lights closer; therefore
they also don't need to be as bright.