Around LHR, we use the FMGC. The Airbus one seems to do tighter turns than the B737 one - but both work on racetracks. Which can be big in strong crosswinds.
I almost never handfly in a busy TMA (where holding is likely), because I would like as much capacity as possible from both pilots to be available for situational awareness. Or even more. Too many incidents happen in TMA's as it is.