Favourite is V because i love the designs of the pokemon(even garbodor and kligklang).The story was great.Pokestar studios was a great time killer.It had great music.And it had the best victory road and league.
Middle II,III,Iv
Least favourite is gen I.It hasn't aged well.Also some people say garbodor,kligklang and vannilish have bad designs but completely forget that voltorb,elecrode,muk and exeggcute exist.