To me there are a couple categorizes of episodes that encompass the whole series, this also branches out in to sub categorizes as well. So what are your favorite types of episodes?
Battle Centric - (Rival Battles, Gym Battles, League Battles, Competition Battles, Battles in General)
Capture - (Essentially were the is focused on the capture of a said pokemon, or an episode were captures occur)
Competitions - (Like EP029 The Punchy Pokemon, EP033 The Flame, Pokemon-athon, EP052 Princess vs. Princess, DP091 One Team, Two Team Red Team, Blue Team!)
Contests - (obviously the competitions May, Dawn, and Jessie took part in during the Hoenn and Sinnoh Saga's)
Character Development - (This could extend to personality, back story, new attacks, getting stronger too some extent like the recent Oshawott episodes in BW031 & BW035. Not only does this include the pokemon but the cast.)
"Bad Guy" Group Centric/Team Rocket Centric - (Episodes the focus on the criminal syndicates of that region and the gang trying to stop them. Or it could be one of those Team Rocket episodes were it focuses on some of their back story.)
Fillers - (Pretty much anything that hasn't been mentioned. This could be a comedy driven episodes, help a pokemon out episode, find a lost item, help out a character. Basically anything that doesn't effect or add to the main story)
My personal favorite would be the Battle Centric type episode I love seeing Ash battle either his Rivals or Gym Leaders. Then when it gets down to the League he always seemed to meet even more rivals or some broken trainer that adds to the excitement.
Battle Centric - (Rival Battles, Gym Battles, League Battles, Competition Battles, Battles in General)
Capture - (Essentially were the is focused on the capture of a said pokemon, or an episode were captures occur)
Competitions - (Like EP029 The Punchy Pokemon, EP033 The Flame, Pokemon-athon, EP052 Princess vs. Princess, DP091 One Team, Two Team Red Team, Blue Team!)
Contests - (obviously the competitions May, Dawn, and Jessie took part in during the Hoenn and Sinnoh Saga's)
Character Development - (This could extend to personality, back story, new attacks, getting stronger too some extent like the recent Oshawott episodes in BW031 & BW035. Not only does this include the pokemon but the cast.)
"Bad Guy" Group Centric/Team Rocket Centric - (Episodes the focus on the criminal syndicates of that region and the gang trying to stop them. Or it could be one of those Team Rocket episodes were it focuses on some of their back story.)
Fillers - (Pretty much anything that hasn't been mentioned. This could be a comedy driven episodes, help a pokemon out episode, find a lost item, help out a character. Basically anything that doesn't effect or add to the main story)
My personal favorite would be the Battle Centric type episode I love seeing Ash battle either his Rivals or Gym Leaders. Then when it gets down to the League he always seemed to meet even more rivals or some broken trainer that adds to the excitement.