>>30434745BB/VW1 tried having a different experience, lots of mons got changes in their stats, abilities and typings and one thing I really loved about them was how you got certain items in batches of 6 instead of 1 (such as 6 lucky eggs or evolution stones at once). Also, Farfetch'd is a crit machine.
BB/VW2 focused on giving you an enhanced experience of the original games. Normal mode was just like a normal Pokemon game, while Challenge mode was the usual hacked game thing (and holy shit that challenge mode was great). A smaller amount of mons got changes in types and stats, but it didn't feel like anything in particular was all that weak, and there were lots of custom script changes including clown NPCs that give you older starters. Also, in these versions Farftech'd was a weird Archeops.
If you don't care much, I suggest just going straight to BB/VW2, preferably on challenge mode.
