I've a pair of the DHB Aeron Pro shorts and a pair of the equivalent tights. I also have a pair of the Rapha tights (bought in their sale) and a pair of Morvelo shorts.
The build quality of the DHBs are eclipsed by both the Rapha and Morvelo kit - the DHBs are falling apart at the seams with an equivalent amount of use.
The Rapha kit fits really well, is made with better material and includes some nice additional features.
For comfort, the Morvelo kit is head and shoulders above the rest. The materials used aren't the same as the Rapha stuff, nor do they have the additional features.
I'm a sale shopper typically and so the prices I have paid are similar. On that basis I'd recommend either the Rapha or Morvelo kit, with the Rapha kit edging it on materials used and features, and the Morvelo kit winning when it comes to comfort.