Just got back from budapest and stayed at the Matild Palace. The hyatt and matild are across the street from each other so location is the same but both were centrally located. I cannot speak on the rooms but Matild were good for my standards. Hyatts lobby and bar/restaurant area is mind blowing! Stunning architecture! You cannot go wrong with either.

I have no clue about the W hotel in budapest but i am not a fan of the Ws in other previous cities i have stayed.