The Nordic Boats 43 Enforcer 2011 is a catamaran design and the Nordic Boats 47 Cyclone SR 2010 is a modified-V design, so you're likely deciding between two noticeably different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
Size is the most obvious dividing line here. The Nordic Boats 47 Cyclone SR 2010 measures 46,8 feet overall (2010), giving it roughly 3,8 additional feet of deck space compared to the Nordic Boats 43 Enforcer 2011 at 43,0 feet (2011). At 10 600 lbs and 10 600 lbs respectively, both sit in a similar weight class - either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
For family outings this is probably the sharpest distinction between the two. The Nordic Boats 47 Cyclone SR 2010 is rated for 14 passengers, while the Nordic Boats 43 Enforcer 2011 caps at 13. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Nordic Boats 47 Cyclone SR 2010 could be the deciding factor.
Bottom line: Choose the Nordic Boats 47 Cyclone SR 2010 if your priority is putting more people on the water - it handles 14 passengers and at 46,8 ft it has the deck room to back that rating up comfortably. The Nordic Boats 43 Enforcer 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 13 that costs less to run day-to-day.