AVX
I had been playing the TM TP5 and was in the market for something new. I asked for something we all want - distance and feel - and the guy told me to try the AVX. It is noticeably lighter than most golf balls and he explained that is where the advantage for better distance comes from. Seemed like a gimmick, but I tried them and found it to be true. The balls had a decent feel with the irons and were moderately responsive around the greens, but really stood out off the tee for me. I gained about 10-15 yards in distance and hit all but 1 fairway. My confidence on the tee box had me swinging better, hitting further, and scoring better. I've since played 5 more rounds with the AVX and my initial findings have remained true. I've never driven the ball better and am really enjoying the rounds.
So much of our faith in equipment is mental. Not sure if the the ball makes me confident in my swing or the reverse is true. But since switching to the AVX, my distance and my game has really improved. If you are in the market for distance without the feeling of hitting a Top Flight/Pinnacle rock, the lighter ball is worth a try. It made a noticeable difference in my game.