Help Optimize my Raid 0 Setup

setup 1:
2x 7200 sata in raid0 with OS/Games/Pagefile
2x 5400 pata Storage

setup 2:
2x 7200 sata in raid0 with OS/Games
2x 5400 pata with Pagefile(own partition)/Storage

setup 3:
1x 5400 pata with OS/Apps
1x 5400 pata with Storage
2x 7200 stat in raid0 with Pagefile/Games/Storage

ive been running setup 2 for some time now but im starting to think i could get better performance with one of the other setups i listed.

any input would be great