If you're going to be overclocking the 3570k, then definitely go with that. Just make sure you grab a Z77 motherboard and an aftermarket CPU cooler. If not, then just go for whichever is cheaper.
Over clocking looks time consuming and alot of work:/ so ill probay go with the 4430, but do you think it can run b4 on ultra combined w/ my gpu
PC requirements haven't been released for BF4 yet, however my guess would be yes. The 760 can run Crysis 3 on high and I don't think BF4 will be as graphically intensive. It should definitely run it on at least high, however.