Best Z68 mobo ?

[topps]

What's best Asrock Z68 motherboard ?

Can I do next, must be SATA3 connection only:
1. 2 x SSD in RAID for boot-software
2. 2 x 2TB HDD in RAID
3. 2 x 3TB HDD in RAID
or remove #3 and use 4x SSD in RAID ?

Can this be achieved with Asrock mobo?

Also in Memory support I don't see many RAM's, like no Corsair's: CMZ8GX3M2A1600C9B