Which keyboard

if your willing to pay 66 pounds then the steal series 6gv2 is the best keyboard available for the money... it will beat out anything under that and a far few keyboards that cost more. it doesnt have backlighting but it does have mechanical keys which give faster response times while typing... the key does need a lot of force to press down though so if your a typist or you spend a lot of time typing it may not be the 1 for you.
btw the tt esports is the better of the 2 you mention it too is a mechanical keyboard going by thermaltakes site.
it uses the same cherry keys as the 6gv2 so has the same drawback for typing.