First it was Winamp. It served me well from the very first versions circa 1997 or so up until about 2003.
Then it was iTunes. I bought my first iPod and back then you were definitely locked in. Eventually, around version 7, things went downhill performance-wise and I had to jump ship yet again.
Then Songbird went 1.0 and I figured I should give it a shot. While promising, the performance for large libraries is still very poor.
I kept hearing that MediaMonkey was stellar in the performance department so, desperate, I’m giving it a go. The interface is not exactly elegant, but I can attest that the responsiveness and memory footprint (~62MB) is excellent. So far, so good. WAF is my biggest hurdle.