both about the same. their both low priced, both get good pulls that usually make your money back or close enough. both fun to break cos u always get something pretty good.
I haven't bought any Throwbacks so I wouldn't know much of the product itself.
However, I've purchased a box of 04-05 Skybox LE and I was quite happy with the results and overall package.
I ended up pulling a few Gold edition cards that are serial'd quite low and I also pulled a Sky's The Limit Dual Patches of Allen Iverson & Andre Iguodala #10/10, 5 colours. It was a great addition for my PC.