New computer, 1366 or 1156 socket?

[Freddie]

Main advantages of 1366:

• If you are running multiple video cards, video may be a little faster.
• You can put more memory in the system.
• You'll be able to upgrade to a six-core CPU.*

Main advantages of 1156:

• Higher turbo boost **
• Cheaper system.
• Uses less power.

*Added after reading Alcattle's post below.

**Turbo boost can be very significant but it becomes less signficant when you overclock or when you're saturating all cores, like you might be doing when you run five WoWs.