Traefik, Caddy, Nginx, etc. what is your reverse proxy of choice, and why?

I've been using caddy for a while. I've been really happy with it, it is very small learning curve especially for someone brand new to reverse proxies. Config file syntax is very simple.

However I've been thinking of moving to nginx. After I learned about OpenResty and the possibility to script nginx with Lua, nginx is very tempting. Sadly caddy has nothing similar.