I have used other solutions for other reasons but we have only used Apache Web Server, the Nginx, Linux we are using, and the IAS (Integrated Access Systems). 

We also have some applications built on Windows servers. We've also used Linux for two or three years. 

NGINX might be a good alternative to Apache as well.

It's the only web server we have been using as of wherever I go.

I have used a number of servers. Previously, I used NGINX. I switched to Apache because it has model and is more flexible.