good busy-animations
small advantage for no. 4
no. 5 reminds me of knight rider - kitt to me, i'm in danger!!! :P

Thanks

I have a question about this set. Did you all liked that the resize and other cursors are flashing? Because if you did, I'll make my next cursor set flashing too.

Flashing is good, it makes the cursors easier to find. Though it may be annoying if one uses them for a long time. So, I cannot say if you should make the next set flashy .