Originally Posted by
cme17
You may want to be aware that Doubletree is part of the Hilton chain and probably the same distance to the airport as the Hilton T5.
I've stayed at the DoubleTree as well, I think the Hilton T5 has the nicer rooms (+ lounge + gym). The DoubleTree is my Hilton option if I'm flying to/from T1/3 as it's served by TFL buses from the Central Bus Station.
My favourite airport DoubleTree is the one at NCL. If only all airport hotels could be as close to the terminal