Frequent changes are the most important aspect imho.
Then comes oil type and synthetic is hands down superior apparently.
Personally I use Amazonbasics synthetic oil.
I tried it for my main bike after reading some great reviews.
My babe runs as smooth as ever. And at 20$ less than my usual Pennzoil Ultra Platinum... it's kind of a no-brainer really.
I do not see the ratings on this oil. as stated previously in this thread it is important for motorcycles to have the correctly rated oil
ie JASO MA