Schiphol was designed to be a single Terminal connecting hub and works really well.
LHR has come back to life with massive investment and has a good experience through T5 if you choose BA and one less Terminal to get lost in at the mo.
CDG has Terminal 1, 3, 2A, 2B, 2C, 2D, 2E, 2F an 2G. CDG is operated by the French. Hmmm