Another scale question?

which scale/s fit nicley with these chords Em Fmaj7b5 Cmaj7 B7?

Well, I'm not too familiar with this sort of progression. It looks like it could be something like: C: III,IV,I e: V,I. You could use the C Major Scale over the first three chords, then B Mixolydian over the B7, and E Aeolian over the Em. Or you could use a different scale over each chord..E Aeolian>F Lydian>C Lydian(or Major)>B Mixolydian>E Aeolian.