It should all be the same stuff (normally a mineral oil with a lemon scent added). I use Jim Dunlop Lemon Oil. The larger bottle (with a felt pad in the top) is more cost effective than the smaller bottle with the spray top. As I have a lot of guitars, I have both types, and top-up the spray bottle up from the larger bottle. It's more economic to apply with a cloth, so I'd recommend just looking for the best price to volume ratio you can find below the price you feel like paying. It doesn't go off, so will last for years in a cupboard.