Ruby and Sapphire's new pokemon sucked and it was loaded with pointless crap, most likely in an attempt to give the game more depth. Gold and Silver were okay, but the Kanto portion seemed rushed. It took me half as long to beat the Kanto portion as it did to beat the Johto portion. I never played Crystal, but I expect it was similar to Gold and Silver with a few more features, like Yellow Version. Yellow version was fun, but Blue and Red are the best. One of the main things I liked about Blue+Red is that there was only 150 pokemon, so filling the Pokedex was easier and less tedious.