Tung Oil every time
I have used both. For me Tung Oil every time. Make sure you get the real stuff though.
1st coat 50/50 with white spirit. Same for next coat. Then you can try a 75%Tung with 25%white spirit. Very gentle rub back between coats with Steel wool(No I dont want to hear all the rubbish about black spots).
Get a finish to die for. It pays you back well for all of the hard work, ie the more you work on the sanding etc, the more it rewards you.
If you use 100% pure tung, it takes up to 2 weeks to dry, and can leave sticky bits etc.
Have a look at my uploads at the fire surround. The guy I made it for and his wife are truly amazed, because EVERYONE who comes into their living room HAS to go over and touch it. People just cant resist.
Hope this helps.
The moving finger writes....and having writ moves on...nor all thy piety nor wit shall lure it back to rub out half a line.