Hi,
when you play games that are free meaning classless etc. - do you -or your playerbase if you have any- experiment a lot or tend to choose the similar setting?
The question is because - free system without restrictions sounds like they can vary a lot, but I find myself sticking to the same paths and settings most of the time, while in restricted, class-based systems I experiment actually more, try other classes etc. ... ironic, but true
Some hybrid system might also be usable, having classes but being able to make them a bit different than usual, use some from other classes or multiclass system perhaps (for scifi 'd go for 1st, for fantasy 2nd)