Best PSU from this list?

All olf them except the RMx are a bit bollocks to be honest, but it goes Aerocool Integrator, Corsair VS>Corsair CS>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Corsair RMx.
 
I put you a similar build together for a tiny bit cheaper with a much better PSU than any of them bar the RMx -

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-6600K 3.5GHz Quad-Core Processor (£210.00 @ Amazon UK)
CPU Cooler: Corsair H60 74.4 CFM Liquid CPU Cooler (£69.98 @ Novatech)
Motherboard: Gigabyte GA-Z170-Gaming K3 ATX LGA1151 Motherboard (£109.63 @ Amazon UK)
Memory: Corsair Vengeance LPX 16GB (2 x 8GB) DDR4-3000 Memory (£74.99 @ Amazon UK)
Storage: Samsung SM951 128GB M.2-2280 Solid State Drive (£63.72 @ BT Shop)
Video Card: MSI GeForce GTX 1080 8GB Video Card (£578.99 @ Amazon UK)
Case: Phanteks Enthoo Pro ATX Full Tower Case (£87.63 @ CCL Computers)
Power Supply: EVGA SuperNOVA G2 650W 80+ Gold Certified Fully-Modular ATX Power Supply (£86.99 @ Novatech)
Total: £1281.93
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-07-30 21:05 BST+0100

You could save a bit on the RAM, the CPU cooler, you're gonna need a HDD in there and the case in there is good, but I just chucked it in as a placeholder.
 
It's a prebuild pc so the choices he gave are all what they have.I agree that the Corsair RMx is the best choice,if it fit's the budget the choice to make,if not would the Corsair CS 650watt be sufficient.