You didn't actually touch on any of the things you would actually use to compare swings. Posture, the angles created, shoulder turn, swing path. Papi had a much larger leg kick and his hands dipped a bit lower before bringing them up, but the two both have a very similar inside out uppercut swing. The swing path is very similar. Rowdy's is a bit more compact.
Rowdy is herky jerky...give me a break.