Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.
The i5 6600k (skylake, socket 1151) would be your best sub £200 CPU.
He can get free shipping & it's £4 more, not breaking the bank.Unfortunately not sub-£200 any more, but almost. This is the answer for gaming OP.