Frege, G.E. Moore  Bertrand Russell, and Wittgenstein  were the main founders of the analytic school of philosophy which is the brand of philosophy taught in British and American universities, the unspoken principle of their approach is ''How can we disprove Kant? 

However, a careful analysis by Robert Hanna shows the flaws in their thinking. Thus, there is a need to get back to Kant. But which approach to Kant? Marburg (Hermann Cohen) Epistemology? Or the metaphysical Kant of the first half of the 1800's.

And besides that I would have to agree with Michael Huemer that the best of the Analytic School is G/E/ Moore.

But I think that the Friesian-Leonard Nelson approach to Kant is the best of them all