A lot of the cheaper honey is either diluted with less expensive sweeteners mixed with substances that are honey-like in consistency or highly filtered (which allows them to stretch the honey out and give you less of the good stuff in a larger container.

Raw, unfiltered, local, and organic are the types that aren't as altered, with raw being the best bet if you want honey that is the most similar to the stuff that comes straight out of the hives.

So, if you're just buying honey for the taste and don't care if it has some sugar or corn syrup, grab the cheap stuff. If you want something that doesn't have added sugar or corn syrup, you can probably get away with the generic higher prices brands (often labeled pure). If you wants as much benefits as possible, head down to the farmer's market and grab some local honey (wouldn't hurt to ask them if it is raw or unfiltered before buying, raw having the most benefits, unfiltered is up there too though, but it usually is pasteurized or strained, which means it is slightly altered but not so much that it kills most of the good stuff.)

I have no idea how this applies to foreign honey, but I'd stay away from anything from China.