Well.. if you are refering to the ones Orbtronic are reselling, it should be alright... if you are refering to the batteries with Orbtronic as the Brand name, its unfair for anyone to tell you if they are better or worst unless that person did proper reviews for both and then he would also need to know your definition of good...
If you are asking just based on assuming, which is the only thing I can offer. It would be that Sanyo should be better. First, Sanyo is a much bigger company and has a specialise department in batteries.. Orbtronics? I dont even think they did any R&D. Or at least its nothing compared to the millions and millions Sanyo has in this field.
BUT... at the end of the day, the only reason why its such a hard question to reply is because its very hard to keep track of average batteries. People only tend to remember the Best. Trust me on this you are probably thinking now you dont want to spend to much on this etc etc.. all have same output maybe try other brands etc. save money here and there etc.. at the end.. you will still end up buying AW batteries just to feel how good it truly is...