First, let me just sum up what /vp/ is like today.
Actually, it's like this everyday.

>Person: I think this pokemon looks really cool.
>Other person: No it looks like shit. Are you fucking retarded?
>Person: How does it look like shit? You're a fucking genwunner, aren't you?
>Other person: The fact that you like that pokemon confirms the fact that you are a faggot. Go back to bed, retard.

Opinions are subjective, people.

Now, what is objective is that BW was a step down from DP. How do you think X/Y can improve upon some things from BW? Such as...
>Boring, slow battles
>Many of Ash's pokemon getting very little screen time
>Ash's rival barely getting screen time, and not mattering much
>Final Rival battle being awful
>etc. etc.

Now, personally I don't think BW was a complete failure, as I actually have enjoyed it so far.

But, many more things can be improved upon, so what would you like to see?