Hands down, I would buy a set of Bridgestone Battleax BT45's for my bike.
Heres my reasons:
-They wear nice
-Grip the road on hot, cool and rainy days (more so then other tires i have used ((spitfires,challengers,metzler lazers))
-They are affordable for the average biker
They last me at least 2 seasons, I replace tires every 3rd season, I just dont like a rubber sitting around all winter not moving and then go and want to ride it, one winter is fine, 2 is pushing my comfort level
I have not put these tires on my 750 four yet, they will be going on come spring, I have run these tires on the following bikes:
72 Kawasaki 350 triple
74 Kawasaki 500 triple
98 Kawasaki 600 ninja
03 Kawasaki 750 ninja
I am sure others will chime in