They all sounded good to me. How they feel would matter way more to me than reasonable (5.1% to 7.9%) tonal differences. That said... the second one from the left sounded a bit more tan.
I put one down my basement next to the shelf of freshly canned tomatoes. The other one is at the end of my street directly across from the fire hydrant. It sounds better next to the hydrant but the cop with the big dog told me to move it.