Warwick vs LSE for IB

Which degree + university combination would give me a better chance to land a FO role in a top investment banking i specifically want to go into trading. Is physics at warwick better or accounting and finance at LSE. My uncle who is a trader at JP Morgan told me that banks see warwick and LSE more or less on the same level and physics would make the difference, but doesnt that mean that i would be at a disadvantage because warwick is not in London?
What do you guys think?
Thanks