You can safely and easily run the 255/40-17 Falken Azeni RT-615s while maintaining close-to-stock handling for about half the price. The RT-615s are the clear favorite for performance as replacements to the Advans. Like the Advans, though, they won't last a really long time, and they're not the BEST in rain, but they're not bad either. I wouldn't run them in snow or ice.
I use them now as my daily drivers, but they also are awesome on the track as evidenced by this vid:
RT-615 Evo vs Z06s