I'll second that about the P68. They have basically an extra 100 horsepower for a similar BEW. I used to be able to land one on a dime, and she was quite spritely into the air in most situations.
The reason why PNG is not full of them is it's a twin, and you have to pay to maintain an extra engine. Plus the after market support and spares is not a notch on Cessna, and there is not a large selection of good ones to choose from these days.