I have used Tru Oil on a
JM-1. I was unsure about it with the first few coats but it built up a nice gloss with multiple coats. I would most likely use it on the next build.
I used Feast Watson Scandinavian Oil on a
JB-4. Gave a nice matte finish and tended to give a slight golden hue to the charcoal stain I used.
Not sure about danish oil, have not used it.
As I said earlier, I would most likely use tru oil in the futue.
You can check out the two builds mentioned
http://www.buildyourownguitar.com.au...ight=Colin2121
http://www.buildyourownguitar.com.au...ight=Colin2121