It's funny cause up until last year I really didn't like this genre of game at all. I found them difficult and I really sucked at them, but then I got Impulse X for the Jaguar and spent so much time playing it that now I absolutely love these games! Impulse X is my favourite but I've also been playing a lot of Arkanoid Doh It Again on the SNES and Breakout 2000 on the Jag.
There's also the awesome game Wizorb. It combines Arkanoid with a RPG and it's incredibly fun!