I would say the best would be to get the MS in general/experimental. Here is why. One, it shows committees a true comitment to research, like I've said before everyone and their cat has an interest in doing clinical which is why they can be selective. To that end you should do a program that has a true thesis, one that requires a new piece of research be performed. Two, most general MS programs will give you the oportunity (if not require you) to take much of your breadth requirements. These are courses like statistics, social, developmental, cognitive, and biological basis of behavior. PhD programs in clinical (I think all types actually) require that you take these, and these are generally the courses they let you transfer. Tehy won't let you transfer core courses like psychopathology, or assessment. It has been my experience that they will then waive your masters thesis requirement that was part of the PhD. So, you enter two years later than you hoped, but you will ahve the masters completed, you will be well versed in research methods and the daily tasks required to search for literature searches, advising undergrads, running subjects, and you most likely will have transfered many of your breadth requirements so you can then focus almost entirely on clinical, and for a semester or two you will be ahead of your classmates in terms of time management skills etc. It's something to think about, I know those discussing this might not be as interested in research or clinical programs.