favorite sound for me would be
The voice of my parents, the way my grandDaddy would tell us that pancakes were ready (Get your hotcakes, hotcakes are hot and ready)
Dh telling me he loves me, loves my weight etc.. lol
The sound of waves on the beach, my girls giggling, My nephew playing the guitar for me around a crackling campfire
the sound of a zipper on a tent (so many good memories from that sound)
puppy snuffling
creaky leather saddles, barn door squeaks,
and the sound of a freshly tuned 454 bigblock (not very feminine of me I know but that sound mixed with Cam2 is just awesome)