I like CJD's thoughts as well. Raw horsepower from an old school hot rod is pretty sweet!
Nobody likes the lineup of dirtbikes at a race as they take off? Good sound when you take the hole shot. I know Kaiser can appreciate this one!
The belly laugh from my kids is awesome, but the innocent belly laugh from a baby is even better. Adorable.
Did anyone mention the sound of a deep buck grunt that sneeks in behind you? Or in front of you for that matter. Hearing bucks sparring is pretty amazing as well.
Not a favorite sound, but one that will send chills down your spine everytime is a pack of coyotes howling in response to your calls. You get them in real close and it is dark outside you will get some chills. Anticipation of seeing the first shadow of one in the moonlight just adds to the moment.
How about the sound of a big bass as you are reeling and it jumps out of the water making the smacking sound?