>>43225506I - 7,5/10. Good start, but kinda hold down by technical difficulties and lack of resources and experience of GF.
II - 8,5/10 Refined concep from Gen I, with upgrades in practicaly everything. Most of the "flaws" come from the fact that it was de facto supposed to be end for Pokemon and focus was more on slow-paced, player-driven narrative.
III - 8,5/10 Again, decent upgrade over Gen II and introduction of mechanics that became staple of this franchise. Hoenn is pretty cozy and lovely region with some of the best Pokemon designs, too. Still, there were some minor errors here and there and lack of connectivity with previous games kinda sucks.
Gen IV - 6,5/10. I don't feel any significant upgrade over previous gen here and it just added more problems like very slow-working enging and completely unbalanced regional Pokedex to the mix. It was not horrible, but i just did not liked it.
Gen V - 8,5/10 Great graphics, music, decent story, difficulty and plenty of content with "second version" being actualy a full sequel. Design of some Pokemon kinda sucked, tho.
Gen VI - 7/10 There was an attempt, but because there was more focus on making new grapgic engine from scratch, everything else kinda was ignored. Still, it had potential and it kinda sucks that we get half-asses Hoenn remake instead of third version.
Gen VII - 8/10 - If not only these goddamn cutscenes and railroading.. This had potential to be the best Pokemon generation, but it got held down in most retarded way. also USUM was a mistake.
Gen VIII - 2/10 Pathetic cashgrab made on Masuda lap, misadvertised, lacking any significant content, overpriced and with DLCs that should be already in the base fucking game to make it worth 60$. Oh, and Pokedex cut but it was something bound to happen so ehhh...