Actually the Tradfri DOES WORK with the Wink hub. This includes power and dimming and Wink robots/scheduling. I’ve been using them with the Wink app for a few weeks now. You have to select GE bulb or Generic Zigbee bulb in the Wink app’s ‘add a bulb’ setup screen. Haven’t tried RGB tradfri or warm/cool bulbs. Just the white bulbs. Perhaps they would work with other smart home systems as well if you chose GE or Generic Zigbee.
Ignore the hub (for the time being) but get the bulbs if you have Philips Hue. As of Aug 2017 they are Hue compatible (and if you have old ones you can update them to be Hue compatible, with the aforementioned hub and remote). I have recently bought 28 of the GU10 bulbs (combination of fixed and variable white) and they are significantly cheaper that Philips with very similar performance.