Comparison Tokico/KYB/OEM rear shocks, anybody?

[foama]

To my knowledge there are currently only a few types of aftermarket rear shocks availabe if you disregard overpriced Mitsubishi OEM parts or the own brand of a certain aftermarket chain.

These are:
1.) Tokico (Hitachi) E20041

and

2.) KYB-Asia (Asian branch only) 348083
2A.) KYB North America (North American branch only) 3320010


Questions:

A.) Does anyone know how the above mentioned compare to each other?

B.) Does anyone know how one of the above compare to a certain particular OEM shock, such as the 4162A199, the 4162A219, the 4126A256 or the 4162A396?