To be fair to the "pmv" side of the question, there is one niche where PMV performs better: low-mass, high-frequency continuous vibration (e.g., transporting delicate optical equipment on a highway with washboard concrete). For items under 50 lbs, a well-tuned PMV system can achieve slightly lower RMS acceleration than HB2.
A "Multi-Animator Project" (MAP) approach is what truly elevates "Heavy Bounce 2." heavy bounce 2 pmv better