The stats show that a SE turboprop is several times less likely to go down than a ME piston.
Emotionally this is hard to accept, of course.
And the direct hourly running costs of the two are probably similar (e.g. Jetprop or Meridian v. Aztec). And a Jetprop allows you to go IFR without the route charges.
The capital cost is the problem. A half decent TP in flyable condition is going to cost at least £500k. But you can pick up a twin piston for £80k, like for like condition.
I am sticking to singles
And if I was to move up, and had a really serious mission profile to justify it, it would be a SE TP.