The -100 is a great airplane!
If you prefer to fly by feel rather than by numbers, if you prefer a quicker roll rate, better ride through turbulence and a nicer airplane to land, you'd like the -100 over the -200 any day.
Just 'cause the -200 has bigger engines, better climb performance, better cruise, quiter cabin, etc., etc. doesn't mean the -200 is better, in my opinion.
We go into lots of gravel strips in the north with both the -100 and -200. I like the way the -100 handles itself--feels more maneuverable, has a better feeling on approach and landing--you can keep the attitude steady and control descent rate with power much more easily. If you chop the power on the -100, it drops, whereas a -200 will float (longer wings). Anyway, that's my perspective. Some of the people I fly with feel differently.
I admit, the -100 is a dog in high density altitude conditions, and it's much more prone to snags. If you're the kind of guy (like me) that doesn't mind driving around in a beat-up old piece of $hit honda civic with no parking prake and one window that doesn't roll down, but handles great and runs fine, then you'd probably really like flying the good ole' King Air 100.