Put me down for another in the category that listens to the Japanese voices over the English. I'm firmly in the "subs only!" camp of the subs vs dubs debate, and I've been watching anime for 17 years that way* so I'm much more likely to recognize a Japanese VA than I am an English one. (Like, I'm about 50% certain than Derplander was voiced by Tetsuya Kakihara, who is also the voice of Prompto in XV.)
In regards to cutscene quality - Spoiler for 3.1:
I dare you to watch that Derplander vs Thancred battle and said that again with a straight face. Or the scene right when the priest is going to drop the little girl and is clearly having a mental breakdown - best use of expressions in any final fantasy game TO DATE EVER. That's the face that Kefka's 16 bit sprite WISHES it could have made.
* not counting another year that I watched dubs on Cartoon Network because I didn't have access to anything else