I don't think it is possible to have a list based on the premise of best to worst as it covers too many things that are personal choices of how a van is designed and equipped. I am not surprised by a lack of lists.
Ratings of quality type issues is doable, IMO, but be aware person bias because owners always seem to rate there own van higher.
If you are looking for a list of opinions for a B for yourself, you could post a list of how you would travel, stay time vs driving, reacquired, features that would be nice, things that would be deal makers, etc.
You will likely to get lots of responses to that method as it a pretty common request on this forum.