Real tough choice. Both bikes are great woods bikes for your size. I had to make the same decision. I'm 5-10, l80#. I liked the idea that the 200 was in a 125 frame, about 20# lighter than the 250 EXE, and had plenty of power with a great power to weigh ratio. Lightweight is important to me, especially in tight woods. Very happy with the way the 200 lugs in stock lst gear, but yes, probably more clutching, and probably more vibration. But a great all around bike.
If I would have bought the 250, I wouldn't be complaining either.
I agree if you are looking for more power, consider the 300 or even the 380. I heard good reports of the 99 and up 380 EXE as a excellent bike in 1st gear in the woods. For sure, these KTM's are not easy to choose between.