SSD will beat old fashioned spinner drives hands down.
The trick is finding the right ones to use in a system. Some are good, others not so good.
With that said, Spinners are still useful for long time storage. That way when SSD's choke you can rebuild a array of RAID with a hotswap or whatever and not worry about loss.
With that in mind you need a UEFI (Did I type that right?) Board to take advantage of the 3 Tera spinners available to you.
Someday we will see three tera SSD's and boy that would be something else.