4 Bundles(CPU+Mobo) Which is best for price ?

Could you please look at the following combo deals they are all unlocked I5 2500K with 4 different Mobos, which is best deal?

http://ncix.ca/products/?sku=61724 [...] le%20Deals
http://ncix.ca/products/?sku=61725 [...] le%20Deals
or
http://ncix.ca/products/?sku=61312 [...] le%20Deals
http://ncix.ca/products/?sku=60394 [...] le%20Deals

this last two are kinda pricey but if you convince me theres a big difference ill go for it.