I'd go control4. You can get the alexa voice control that works with control 4. If you loose internet you still have native control4 app or hard controls for backup.
I have control4, russ sound 4 zones, honeywell security (2 suites), lutron zigby lighting (all controllable via c4 iphone app). I have hikvision 4 cameras (not integrated into c4). I have rainbird for irrigation but also not integrated (haven't looked into it). The lighting scenes are quite cool ( all-on, all-off, party, home, etc ). You can do a all lights blink alarm mode if you want as well. The scenes can be programmed by the installer. At the entry I have a single gang switch box with 6 horizontal stacked keys which each do a scene. I didn't go too crazy on the lights so I really just have the common areas and I kept the bedrooms/bathrooms dumb.
I haven't put in an alexa voice control for it but you can (probably in the future). Star wars doors sound cool. Sounds like budget isn't a problem so probably control4 is the premium option that is likely to integrate or have integration options available.
Be interested to see what you end up with.