I believe most people agree that the first generation they played was their favorite.
Our own first gen be it gen one,two,five was where we learned basic stuff and simply enjoyed playing instead of thinking of movesets,matchups and stats.
And everything was new.
Gen.V is still young,so we can't seriously call it the best,B/W are a step in the right direction and show the great potential of Gen.V.
But the next games are where we can know for sure. Honestly I don't know what I would like more:to have remakes of R/S or not to have them! But I would definitely like third version before the remakes.