Now I am personally a Gen 2 man I think it was easily the best generation! It improved on everything Gen1 had and had pretty much all of Gen1 in it at the same time. The graphics where better, the addition of color was fantastic, and most of all more legendary Pokemon to get!The story was straight forward, there was no dumb twists or dumb ass side quests to the extent of later gens.
I personally didn't like Gen3 as much i felt it was less straight forward, I didn't fully get team magma vs team aqua and they where not NEARLY as love able as team rocket (Also their music was not as cool). Best part of Gen3 was fucking Aron that Pokemon was THE BEST TANK!
Gen 4 SKIPPED IT!
Gen 5 WHY DOES THIS EXIST! there was NO redeeming qualities to Black and White or Black and White two! The game sucked, the game felt formulaic at this point, it felt like the same old show all over again.
Gen 6 Easily the strongest gen of the new generation of Pokemon what a good game I fucking loved Y they did a fantastic job on that game really felt new, crisp and fun!
Gen 7 played a good deal of it but never beat it. IDK with Gen 7 it felt like it broke the mold too much and wasn't really the same any more at all the basic idea was the same but it just felt weird and like it didn't fully belong.