>>97408961Gen 5 is considered by a lot of people to be among the best, and the Pokedex is entirely gen 5 mons until after the main story, so you don't have to worry about getting overwhelmed with a thousand different mons you've never heard of.
Otherwise, Heart Gold/Soul Silver is a 4th gen remake of the 2nd gen. Plus, Silver/Gold has probably the most kino final battle.
