Both approaches have their own advantages and disadvantages, when you use an options hash replacing standard arguments you lose clarity in the code defining the method but gain clarity whenever you use the method because of the pseudo-named paramaters created by using an options hash.
My general rule is if you either have a lot of arguments for a method (more than 3 or 4) or lots of optional arguments then use an options hash otherwise use standard arguments. However when using an options hash it is important to always include a comment with the method definition describing the possible arguments.
