I think the reason there has to be a lot of reading is that there is no definitive answer that works for everybody across the board.
If you are planting grass - you can get the best grass seed to grow in your area of the world, in shade, in sun, for short golf course type grass, or taller hardier type grass. But you will still need to study to know what to buy.
For us, we have to figure out what kind of riding we do, in what part of the country - forget that we may cross state lines and several elevations many times in one trip, for what bike, what our dealer or mechanic likes, what is readily available in our neck of the woods and at what price.
Kat ------- do the reading. Then if you do your own oil changes make a decision. If you have someone else do it, see what they like, have available and at what price, then make your decision.
We all think you are going to decide on Amzoil, Mobile and or Redline over HD's Syn3. But if Syn3 is all that is available, you will use it and like it d$#@n it.

It is one of those things you will have to educate yourself on, and then you can ask your buddies what they like ----- then ask them Why they like that one.
Good luck.