I havent tested that one, but by looking at the cards, Id say that sgs is more successful. Heres why.
You will need 2 otys. If something happens to your 1, then you are in big trouble. 2 rofs is a little overkill, as you usually need it a little earlier in the game, and that 7 quantum is a pain to get for it. 14, even worse. I would also switch out the un upped bone wall for a dimensional shield. If you need 2 bonewalls to protect yourself, then youre in trouble, and the 2nd one is probably getting destroyed immidiatly. Whereas the dimensional shield will give you 3 turns of protection regardless. Its also my opinion that 2 boneyards (althouh I have tried with that, and found it nice) isnt really neccesssary and will make litttle to no difference in the long run (I also found myself having to choose which card to discard, and making the choice to discard the bone wall. Thats my opinion though, Like I said, its all theory and not much else.