I do wear tights/pantyhose sometimes,
for the fun of it,
and also when it is pretty cold out,
especially if i am working outside,

sheer to waist is basically more comfortable, but they do seem to start falling down,
where as control top seem to stay up better,

what you all think?

I agree control tops do stay up more and to me are more comfortable. My favorite brand is Hanes Sheer Reflections

i wear both kinds. i always wear support leg pantyhose, but i wear both control top and non control top.
Control top do stay up much better, so i tend to wear them more. I also enjoy the firm secure feeling from control top. But when i wear really short skirts or short shorts, i wear sheer to waist.

I sit all day long at my job and I enjoy the control-top light support from Hanes Silk Reflections. However, if I'm going out to do things I prefer wearing the sheer-to-waist.

By far Sheer to the waist is more comfortable however I need the control tops so I wear those usually. I do ear sheer to the waist under very loose fitting skirts and when I am really in the mood for you know what.