Assuming you wish to gain a CPL then go for the (slightly) bigger aircraft. Down the track you will need (a) experience dealing with passengers, even friends exert subtle pressure and (b) friends to share the cost of building some command time - more seats - more friends - less dollars per seat!
for CPL you need to do it in a CSU equipped a/c with a TAS of at least 120kts.
Not for ALL of the training though, only for the flight test and enough of the advanced training to cover sequences and ensure competence on type prior to the test.