I like having first-hand knowledge.
Soapbox: I work with a lot of photographers in real-life and conversing over the internet. There's a general trend to dwell on things that are missing, wrong or inferior with things. Cameras, cars, wine, jobs, spouses (the list doesn't really stop). There's a video by photographer Dewitt Jones called "Celebrate What's Right with the World." I think it's worth watching.
Anyway, I got the a6000 based on recommendations. I like it. It does many things very well. There are things that the Sony does that no other camera does and that I like better. Likewise, there are things I like better about my Nikon (I love how configurable it is and how much control I can have). And Canon? Same thing. I just happen to have a lot more Canon stuff.
When I want small and light, I grab the Sony. When I want to use some amazing optics, I reach for the Canon. It's simply a matter of grabbing the right tool for the job.
When you have only one screwdriver, it can be used for many different jobs. If you happen to have a full set of screwdrivers, you're more likely to grab the optimal tool for the job as it's simply more enjoyable. And yeah, sometimes you *need* a more specialized tool for particular needs.
"It's a poor craftsman that blames his tools." Any of these cameras can take great pictures.