Games: Black/White & Black 2/White 2
*Disclaimer* I am only including the main games for this list, no remakes or side games. Those may come later.
For the next six days I'll be ranking my favorite Pokemon generations from least to best. Just to get this out of the way, there is no generation of Pokemon that I dislike. Even though Gen V is at the bottom of my list, there were a lot of things going for it.
Which brings me to my second point, there A) a TON of new Pokemon and B) a lot of my current favorites are from this Gen. While there were several that were clearly homages to earlier Pokemon, I felt this was one of the more creative sets.
The story was pretty good too. Team Plasma is (hypocritically enough) trying to convince people to release their Pokemon, while the secret leader Ghetsis plans to rule the world when he's the only one left with any. The theme for this generation Truth vs. Ideals, which played out really well.
Another awesome feature of the Generation was that instead of a third version like we had come to expect in the past, we received full-fledged sequels in the form of Black 2 and White 2. This allowed us to explore the region again a few years later to see what had changed, and that was a ton of fun. We also got a really neat feature in the Pokemon World Tournament where we got to test our skills against Gym Leaders, Elite Four, members and Champions from previous generations.
The main reason this Generation is on the bottom is because it didn't really revolutionize the core games in the same ways that other gens have. Fun features included the introduction of Hidden Abilities and some new items, but that was about it.
I also found the layout for Unova (the region you explore) to be somewhat bland, and I've honestly forgotten about half of the cities. Whoops.
Favorite Pokemon from this Generation:
Hydreigon, Ferrothorn, Krookodile, and Chandelure
Team(s) I used my first playthrough:
Black: Serperior, Ferrothorn, Krookodile, Chandelure, Carracosta, and Galvantula
Black 2: Emboar (Akuma), Jolteon (Blitz), Crobat (Mina), Starmie (Estrella), Flygon (Freeman), and Aggron (Colossus)