Wow, it really has been too long since I've posted here regularly. Johto is the most hated in the PC Pokemon anime section? o_O But...I remember when it seemed most people here loved Johto and no one wanted to talk about anything new o.O I'm pleasantly surprised.
Well, anyway, I voted Johto. Fillers, as everyone knows. Misty and Brock (and Ash) had lost any little personality they had. Although, Gary vs Ash was good. I still think it would have been so cool if Indigo League had included the Silph Co. Team Rocket takeover, though. Hoenn brought May, and contests (absolutely loved the tension between Drew, Harley and May in the Hoenn contests~). Battle Frontier had few fillers, and I actually really enjoyed the battles (and contests again), even though they could've been more based on the actual Battle Frontier rules (not by battling random people hundreds of times, but by, for example, the Battle Factory having to use rental Pokemon. Seemed too similar to gym battles). Sinnoh had Paul and Chimchar and Ash improving a lot in battling, by actually remember the strategies he made up. Isshu seems to be going back to the 1st series and having actual interesting characters interactions between the main characters.
Could write more, but I'm getting close to writing a random wall of text full of just random notes o.O