I've just finished the main story and I wanted to give you a feedback on your work. Probably someone else already said this, but man, it's amazing!
This has to be my best game experience with the pokemon series up to now. It was neither like usual hard versions that just require you to grind like crazy for hours nor too easy like the standard games.
The incredible diversity of mons you have access to during the game lets you develop whatever team strategy you want to create. The generally improved opponents were perfect to balance this diversity and the higher experience that I have as a long date player. B/W's new mechanics really help in impoving your experience, leveling up was nither too quick nor too difficult, even though some opponents were incredibly difficult to defeat whitout outleveling them e.g. Burgh's Masquerain.
Actually I didn't play the original game, but seeing some walktrough I can tell that they were very easy in comparison to BB/VW.
I really want to thank you for this, I really enjoyed it.
P.S. Serperior is useless all game until it becomes one of the most incredibly destructive powerhouse ever. I loved using it. :)