I really like the Pyranha I series. I have an I3 222 and paddle it in the park and river run class IV with it. I weigh 205lbs. TIn the 223 I felt like I was sitting in a bathtub. I have a 30-inch inseam and have the seat one notch from full forward. Proper seat position (boat trim) has a significant impact on how a boat paddles.
Demo any boat that you are interested in!!!!!!!!! And have someone check the trim when you are sitting in an eddy. Do not be affraid to adjust the seat position!