I am upgrading from an a6000 to an a6300 and want something better than the kit lens. My shooting is mostly kids, where they can spring into action at any time, and I want to capture the moment without time to change settings (hence the AF features of the new 6300); also travel, holidays, and street photography. I've narrowed to the following lenses and am asking for your vote - if I were to have only one lens, money not an object, which of these 5 lenses should I choose?
Zeiss 1670Z (totally mixed reviews)
Sony SEL18200 (often recommended as the one lens, but mixed reviews regarding it's auto focus speed, size, and the possibility of a required flash extender
Sony SEL2418Z
Sony SEL35F18
Sony SEL50F18
Thank you so much!