Define “better” 
I haven’t used filmic v7 yet, but I would encourage everyone to try out sigmoid and filmic to see which they prefer. I don’t think there’s an answer as to which is “better”. Filmic may give more vivid highlight colours, maybe even more accurate, but sigmoid creates a look that you might find much more pleasing (more filmic, ironically). And for newbies, it’s much more of a set-it-and-forget-it kind of module.
But thanks for writing this up. It’s always great when someone puts in the effort and time to help others out who may be having a hard time understanding the software.