Both would be perfect for Wi-Fi but for "Plus" motherboard you have to buy additional Wi-Fi adapter I would go for Plus and get USB 3.0 or PCI-E X1 Wi-Fi adapter for it
However wired connection is always better than any Wi-Fi, it's not so difficult to set either Wi-Fi and wired internet connection
I'd suggest the 4670K and either mobo will be good, with the Plus (costs less) you can pick up a decent USB adapter for wireless (which I myself prefer), the Pro is about $190 and the Plus $160 so may come out a few bucks ahead that way