In my opinion, Danish oil will give you a nice "softer" luster. When I use the BLO/MS mix it is at 50-50. I've also read somewhere that when using the BLO/MS, mix up only what you will be using at the time. Be very, very careful with BLO and any rag that you use with it. Very combustible if rags get balled up. Burns very hot and very quick.
As for cost, not sure which is a better deal.