The anime, according to me and Brocake, fell from great to suckish when it entered the Hoenn region. After 2 great seasons with a great plot, they just made Hoenn have simple plots, with the same things over and over again every episode, for example.
1st Episode, Plot, Save a Pokemon
2nd Episode, Plot, Save a Pokemon
3rd Episode, Plot, Save a Pokemon
And so on and so forth.
But, if it was like Sinnoh is now, then it would have stayed a great anime for a long time, I mean, Sinnoh is good, but Hoenn just ruined it. This concludes Drachen's Research Posts, Part 1.
XD