For up to four seat touring, the Twin Comm wins hands down.
Aztec is also really only a four seater but has a problem in that if a particular engine fails you have lost not just the engine but also other systems.
The Senneca 1 is also just a 4 person aircraft but with 6 seats so great if you have lots of children but also has the aileron - rudder link that reduces the crosswind limit to 12 knots.
As a twin with up to 9 hours endurance the twin comm is an ideal aircraft.
The tip tanks alone can get you to Alderney from the London area with IFR reserves.
Regards,
DFC