I don't use either of those foundations on a regular basis, but I have tried both and I honestly believe that Sephora's Perfecting Cover Foundation is just as good as MUFE's HD Foundation in terms of long-term wear, being easy to blend, looking natural, etc. One thing that I like better about the Sephora foundation than the MUFE foundation is that the one by Sephora is non-comedogenic so it won't clog your pores or cause breakouts. If you live near a Sephora, it would be a good idea to go to Sephora and get color-matched to each one of the foundations and get a sample of both that you can take home a try for a few days and that'll give you a chance to determine which one you prefer. They are both good foundations, however, so you really can't go wrong with either one, but they do vary quite a bit in price...$22 for Sephora versus $40 for MUFE.
Hope this helps!
Have a great day!