Either is fine, just make sure you get authentic MNKE's. The fake ones have dot matrix printing of the wording and a dot matrix type logo on the battery.
Not sure if it was a result of volume caused by VaporJoe's mention of the batteries in the hot sale blog or the July 4th holiday, but I ordered some batteries from this ebay seller on Thursday, July 3, 2014... Ebay estimated arrival to me on Wednesday July 9th... But didn't make it to the post office until July 7th... Last seen in USPS in Salt Lake City on July 8th, and hasn't been seen since...