Great post. Like others. I really want Home Kit integration to reduce the number of apps needed to manage these.
You can get white hue bulbs for £9.99 very often on deals so if you only want white I would definitely stick with Hue. Colour bulbs are really expensive.
The other advantage of Hue is there are lots of other lights available. Strip lights, bloom, play, Hue Go, Outdoor, movement sensors etc.