Neither English names nor Japanese names for me !
I totally prefer french names, maybe because I've grown up with them so they sound more epic for me than in english or in japanese.
After, I just want to precise that I'm really disappointed with french 5G Pokémon names, they were better before, albeit it depend on the Pokémon.
But seriously, when I was playing RBY or OAC, Pokémon's names were so badass :pink_boogie:
Sometimes, when I see English names I'm a little disappointed by them. For example Moltres, for a legendary fire bird, I think it's not so good at all. I prefer "Sulfura" (I'm not sure that the effect is the same with English prononciation, however :pink_tongue:), or "Electhor" instead of Zapdos. After, there are french names that are really bad, of course.