I tune in UTAU/Vocaloid, then I export the voice and mix it with FL Studio. I used to use Audacity before, but with FLS I can add more effects and get better results.
I also make the videos with Movie Maker or Nero.
FL Studio is my DAW of choice through and through.
I do my vocal work entirely in UTAU, since I can't be bothered to figure out how Newtone works.
However, sometimes I'll use Pitcher when I'm too lazy to make actual harmonies.
I tune entirely in UTAU but will sometimes use a pitch correction plugin to pull some loose pitchbends back into place.
I mostly mix in Cockos Reaper but play around with Audacity if I'm not doing anything serious-ish.
I use Vocaloid 4 or UTAU for my voices. Piapro Studio too for Luka V4x and EVEC. If it's just a quick WiP I'll use REAPER to throw a mix together if I can, otherwise I'll use Studio One.