Nothing to add to the explainations of the different landings that have already been given.
As for which type of landing to do: as has been said already, if there is a strong gusty cross-wind, only a wheeler will get you down safely. If the field is very short, only a 3-pointer will get you down safely. If neither of these is a factor, you can pretty much choose whichever you want. If you're taking the girl next door to some exotic place for lunch, then I'd go for whichever you're better at and least likely to bounce off of - far more likely to impress! If you're by yourself, I'd go for whichever you're least good at, because you want to get good at it so that when the time comes that you need to use it you are good at at!
FFF
---------------