For many jazz players, producing/transposing a leadsheet is the most used function of notation software - the 'big' names in music software are expensive overkill for most things that jazz players do.
For me, the easiest to use, and cheapest is PG music's 'Band in a Box'. As well as the simple melody, chords and perhaps lyrics leadsheets that it so easily will produce, if you play in a full solo piano piece, or use the 'import midi file' command to import into the program one that you have recorded as midi, and ask it to split piano track into Left / Right hand, it will produce a reasonably playable piano score.
All of the 150 plus jazz videos, (free to download) on my website -
http://www.bushgrafts.com/jazz/ have been notated with either Band in a Box, or the PG music 'sister' program, PowerTracks Pro Audio. I have had to do a fair bit of editing to make the transcriptions more accurately match the video of my hands on the piano - but most of the difficult work has been done.
Doug