in my pick, considering the games:
anime:
and manga:
1. gen 4
Sinnoh is my FAV!
i only played through diamond once and i loved playing through the game. also i still love the game because i haven't worn it out like hoenn. there are also many pokemon i love that were introduced in that gen. Weavile, electivire, leafeon, glaceon, shinx line, starly line, the starters and evolutions, shellos line, buizel line, pachirisu, and others.
the manga was amazing with story and characters. I love Dia, pearl and Platina.
(especially Pearl)
The Anime is the best aswell. the movies, the characters, and ash was a bit smarter thin sinnoh.
i love that ash created a new technique called counter shield and that he used his pokemon from other regions in the league. I love, cynthia, Pokemon Hunter J, Team Galactic, Barry, Zoey, Reggie, Paul, Conway, Dawn, AHHHH i love it!!!
2. gen 5
Unova had a REALLY good story line and i enjoyed playing through it. i loved team plasma because that their mission is to liberate pokemon. to me that looked like gmaefreak was questioning themselfs if pokeballs were really a good idea. Another reason is the Manga. Unova had the best adventures manga in my opinion and Hilbert(black) is my fav manga character. Gen 5 also has my fav pokemon ever in it. I love unova and i was REALLY shocked about all the hate towards it. Sunfisk, Trubbish line, Vanilite line, kling line, tepig line, patrat line, elemental monkeys,
Stufisk: i love the derpy face
Vanilite line: WHY PEOPLE HATE THIS? its freaking Ice-cream! you don't like ice-cream or something? plus its cute
Kling line: they're cool. simple designs and names are something that we sometimes need.
Tepig line: .....tha heck? tepig is cute as *BEEP*. i hate it that People hate on the fire starters for being fire/fighting. its just a stupid thing to hate about.
elemental monkeys and patrat line: .....ok i can't argue with these two lines
ok i think its time to move on.
3. gen 2
Johto was my first region and my first starter was chikorita. the story is Awesome and i love the manga. the anime is not overly good but whatever. I love that team Rocket came back and i love the characters. ethan, silver, crystal, lance, and others
also awesome Pokemon. Starters and their evolutions, lanturn, mantine, noctowl, mareep line, heracross, many others
4. gen 1
ahh nostalgia street. this game didn't have the best graphics(in fact the worst). the reason its here is because of the pokemon adventure manga. that was SOO cool and red was an amazing character. oh also gen 1 has awesome pokemon in it. Arcanine, dewgong, charizard, persian, pikachu, tauros, lapras. and alot of other and there are also alot of. not so great pokemon. *stares and voltorb and electrode*
5. gen 6
The graphics, the pokemon, the trainer customization, the pokemon Amie and super training, fairy types, mega evolution. all of that is amazing! Also the Anime is really good.
the only downside to it i think is the story line. compared to every other gen i feel the story just....sucks. there is really not alot of story and the whole game was made just to introduce mega evolution and fairy type.
6. gen 3
Hoenn is an amazing game with great pokemon. but the reason its last is because i was stupid and played ruby over and over and over again so i got really bored of the entire region and its anime. ORAS and the RS adventure manga helped a bit but i think that if i didn't constantly play it hoenn would have been a lot more fun for me.