Yes, for a long time in fact. But I haven't mentioned it previously cuz discussing Wind Waker's style always attracts the usual "garbage" that I don't like reading.
Back to Jack, both are strikingly similar in color palette, illustrated emotion, physical movement, and general character design. Remember those times when "Kid Jack" was shown? You could swear he was Wind-Waker-Link's long lost cousin or twin -- head shape, body proportion, and nearly identical eye designs. The more I see either of Wind Waker or Samurai Jack, the more alike they seem, there are even times when Jack would solve his problems with Zelda-like ingenuity, in addition to his kenjutsu.
[what do you mean "Same artist"?]