I find neither:
(1) Both are easily knocked down by defensive systems.
(2) Both produce an incredible amount of launch noise and force you shallow.
(3) Both are like a big finger pointoing to ASW helos "sub here!".
(4) I find the best ASUW is the somewhat slower passive fish fired below the layer and wire guided. You then bring them shallow up into BG's wake and activate them (passive). If you do it right, they never hear it coming.