I quite like the 30 pin, though that may be because I coveted iPods at the time but couldn't afford one. I had a couple of Sony hard disc Walkman, which seemed to have a different connector every damn time, meaning you couldn't buy one dock like you could with an iPod. On top of that, it was a solid connection that clicked nicely every time. But yeah, ya boy was wiiiiiide. I have a dozen of them knocking about now, as my little collection of iPods grows...

Also, it's hilarious that Samsung straight up copied the 30 pin for their original Tab, but flipped the pin position so the cables weren't interchangeable.