Originally Posted by
Trav+
I'm not a fan of changing from Piccadilly to District line at South Ken; it involves escalators, stairs, a couple of long schleps - meh
The change from Piccadilly line to District line is easiest at Hammersmith, where it's a walk from one side of the platform to the other
+1 for changing at Hammersmith - far easier just walking across to the opposite platform.
@OP: I'd take the tube all the way. The Circle line is notoriously bad for service disruptions and you could be waiting 10-15 minutes for a train from Paddington to Victoria