You're correct about most folks having different methods and tie down points.
Here's what I do:
I always carry more tie downs than I think I'll need. So, if I have those extras with me, I use the crash bars first and then use another set at the triple trees. One needs to remember that is not using a secured chock that the tires can slide or slip sideways on the floor of the trailer. I don't use a chock, my trailer has a channel the tires fit into that keeps them from sliding to either side but, if not for that (and no secured chock), then I'd be strapping the front wheel to the front of the trailer. That puts a total of four on the front end. Is that overkill, I certainly hope so. Although, I have just used the crash bars. But, I don't strap the bike down more than just less than half way compression. I don't want to blow the seals (just installed) either.

I prefer to always use tie down points that have rounded surfaces and if they don't, use a sling or other protection for the strap and tie down point. Have only had one bike (almost) get away from me once secured to the trailer and that was when a tie down broke. That's why I use four up front.
Use what you can of my method and good luck. It works for me.
Rams