Not really a valid poll. It depends how you plan to use the aircraft.
As been discussed in another thread, many women do NOT consider flying in an RV, traveling --most generally this refers to the 2 seat RVs. You CAN go far and fast, but it is not the most comfortable way to go. To them it's cramped, noisy and may not have the best temperature control.
The -10 however can be equipped comfortable (plush interior, AC, in-flight entertainment, etc) as a cross country traveling machine! If this is your intended mission and you wanna have any hope of using it as the family traveling machine, then it doesn't matter what percentage of the time the extra seats are filled. The -10 is a no brainer.
Shoehorning you and another in one of the 2 seat RV for 3 hours with a stick between their legs, may cover a lot of ground, but it won't be comfortable. The -10 also has a stick but at least they can recline the seat, have more room and have interior space comparable to a standard automobile.
It's like comparing an four seat BMW sedan to a Mazda Miata. Pick you mission and then choose the best aircraft to meet it.