1. API certified. Because there are oils that could meet a mfr's approval that don't bother to have it tested. So, in my mind, the most important thing to knowing that an oil will be of good quality is API cert. Though, obviously those oils with the mfr approval are going to be of just as good, if not somewhat better quality.
And that's all I can really chose from your list to answer your question.
However, when it comes to Motorcycles/ATVs with wet clutches (shared sumps)... I see the JASO MA or MA2 (either one, really) certification as being the second most important.
Now, as for least important? Well, heck idk. Probably the approvals it advises it 'meets' would be the least important