BW was arguably worse than Journeys I distributings screentime 

There were 142 episodes and 3 yet most of the mons had less than 31 appearances (approximately 1/5 of the series) 

Pikachu, Meowth, Axew, the Unova Starters, Scraggy, Pansage, Crustle, Excadrill & Emolga passed this benchmark (cont)