I'm not sure I would invest much around Wink as its future is uncertain. The parent company of Wink, Quirky, filled Chapter 11 back in September and agreed to sell Wink to one of its unsecured creditors, their contract manufacturer, Flextronics. So the future of that system isn't very secure. But as long as you invest in standard Zigbee or Zwave devices you can move them to another Hub later.
Otis is right, Wink is also not nearly as open or compatible with as many devices as SmartThings. SmartThings is a really awesome system with almost unlimited potential and a great dev. community. So far, it seems like Samsung is supporting the platform and not killing it off like Boxee, etc.
However, as cool as it is, reliability is suspect. I have close to 50 devices in my home and they work well most of the time. But there are times when SmartThings has a glitch and routines or automations just won't fire. It probably happens less than 5% of the time but when it does it can be maddening. As long as you are aware of this and don't plan to use the system for security functions I think it is by far the best choice on the market today. But Google or Apple could change the market tomorrow. Again, stick with standard devices.
Agree 100% on this. Sounds like you're near fully automated -- what kinds of devices do you have? Any cool setups/automations to share?
The Smartthings community is great. Reminds me of the Homeseer community in the amount of geekiness and helpful feedback and cool ideas.
I bought a second Amazon Echo for the living room and set it up last night. Now I just sit there. "Alexa, turn off the living room lamps."
But you are right, reliability is still an issue. Sometimes my garage door won't open and I don't know why. The command goes in, but I believe it's just wonkiness with the Smartthings cloud. They'll need to solve that issue if they want real widespread adoption.
I've got about 20 smart switches and outlets sitting on our dining room table, but I've given up trying to install them due to the crappy old wiring in this house. I need to get in an electrician. Hopefully he can run a neutral and get these installed for not a fortune...