Compiler recommendations?

Hi there. Working on 1st couple of maps. With AD monsters if that matters. I tried to compile with eric-tools + Necros 1.03 and it works, it opens in Quake under AD, plays as intended. But in case I do not know something - do you boys & girls have any recommendations which compiler is better to use? For example in AD-readme they state they’ve used “BSP/VIS Compilers - by Kevin Shanahan/Eric Wasylishen”. THANKS in advance for some advices

I think Eric Wasylishen is known as ericwa or ericw. That’s why the compiler is often named “ericw-tools” (I think compiler is just a part of the tools package).