Interesting LUHE!
As a Walking dead fan we all love Greg Nicotero's 'mechanical' or I guess you'd call it handmade special effects. Time and again the cgi in TWD is a huge let-down *and* big budget eater and we are unanimous is saying forget the cgi unless there is an over arching need for it in the story line! I think TWD has learned its lesson this season and even Shiva the tiger combined the puppet makers skill with robotics ('animatronics') and some cgi.
The skill of effects guys like Nicotero still beats cgi hands down every time imho.
Edited to add: I do appreciate that some films that demand detailed shots of, for example, WW2 submarines in action as per Dark spliver's Union effects cgi is obviously necessary *and* impressive, though.