I ended up with Michelin Pilot Activ's on my bike last year. I didnt wanna spend too much, and I REALLY dont need super sport tires (its a B4, its also my first bike etc...).
They are bias-ply tires, but so far, so good! I believe the B4 is designed with bias-ply tires in mind anyway. They were also the only tires I could find in the stock sizes (for a decent price). I think both of them ran me about $200 together, but you'll probably find cheaper prices in the US. I think its an excellent tire for the money!