Someone really likes the 5th gen Pokemon design, but yet someone doesn't like it. This is because the ones who like it has a novel aesthetics, and the one whom dislike it has a simple and nostalgia aesthetics.
I'll not give arguments on who like it or who dislike it, but I do want to give an opinion on the Pokemon design team.
To tell the truth, if I don't read this thread, I really don't know that the Pokemon character designer team had replace so much old people and bring in new people. So that's why the 5th gen Pokemon design style had such a dramatical change...
But unfortunately, I'm not the one to have a novel Pokemon aesthetics, so I don't like the 5th gen design AT ALL! The designs are just so weird!
I really don't understand why Game Freak replace almost the whole of the designer team! The original design team that designs the 1st and 2nd gen was great, they should had remain active in the Pokemon character development. Now that the current 5th gen character designers had just ruin the original Pokemon design aesthetics, they don't really grab the true design originality of Pokemon!
The reason of I'm saying this because there is one comparison: Digimon
The Digimon franchise of Bandai is officially a rival of the Pokemon franchise of Game Freak, they both have very similar products, and both giving a similar impact to the entertainment sector.
But however, the character design of Digimon did not had such dramatic alteration, although there were changes made on the Digimon designer team, as like how the Pokemon character designer team does.
The new Digimon they design still contains the originality of being a "Digimon", the new Digimon still has "something" in the design that makes them suitable "to be" a Digimon.
On the contrast, I can't see that "something" in the 5th gen Pokemon design. They lack that "something", so my first opinion on my first sight on the 5th gen Pokemon was "Is that a Pokemon?". The designs were really unsuitable to be a "Pokemon".