Nice roundup. My 1st pedal was an Ibanez BP10 compressor, bought because my Hondo bass (ghost of LeeUK chuckling) had such terrible inequalities across the strings. Although I don’t have that prob and no longer use it, I still have it (and some dreamer on FleeUS wants $125 for his). EDIT: actually $199, over £125
IIRC, it also did tremendous things to the attack and sustain. If you haven’t mastered the changes from fingertip/thumpad/plectrum (it’s 90% in the fingers, Youngwasp), then a good compressor can dial it in for you.
My own lust was always the Sansamp, although my peculiar and expensive alternative was to buy dozens of different valve amps and a Nobels splitter.
A good, cheap, standalone flange would be nice.