Pictochat is weird... It seems to help campy characters but the transformations hinder them a little, though at the same time, many campy characters have mediocre recoveries, and the stage helps them with that, and hurts the gimp game of G&W... Since the side blast zones are so close to the stage borders, it's dangerous to fight characters with killing throws here, like DK, Olimar, Ness, Luigi... and the upper blast zone is a little higher than the average (is like FD), so it doesn't help G&W either
The only good thing about this stage are the hazards which help G&W more than hurts. Even so, I don't know which kind of characters should G&W counterpick here (considering RC and all the other good stages for G&W banned)...Maybe this stage could work against Marth and maybe... MK. I'd ban this stage against Luigi, Olimar, Ness, Wolf, Ike and maybe DK and Ganondorf too (lol)