I like bunk trailers, especially for smaller boats like yours.
The pros are, better support under the hull, pressure points spread over a larger area, less maintenance, ability to drive on the trailer, easier to line up the boat on the trailer.
The cons are a little tougher to slide to boat on and off the trailer on very shallow ramps (some glide sticks on the bunks help this), the bunks and carpet are prone to rotting over time (it took over 15 years on my trailer )
That's all I can come up with at this time.