Former ffs member here, I do play on EUW almost every single day, very rarely on EUNE, and once or twice/year on RU region.
EUW: Velkoz Katarina - Top champ: Katarina - 232.685 - Mastery Level 7
EUNE: Tódor Attila - Top champ: Katarina - 59.665 - Mastery Level 7
RU: Little Cute Kata - Top champ: Katarina - 67 579 - Mastery Level 7
(Who would have thought kappa)
Current progress on EUW:
Feel free to add me