Weekends are usually considered more "Family" oriented, so it might be a little more difficult to get away on those days. Therefore, I would think weekdays are a better option.

weekdays are busier for me

but

most providers don't work on weekends

so when i work weekends i get some requests

so , i'll say for me is kind of even when i'm available all week !!!

weekdays are so much easier.  especially during the daytime like noon.
for me, weekends are harder to get away.  family commitments, etc.