I've gone with Amegas, for reasons I shall explain.
1 - It is one of the few game on the list I know.
2 - It is better than Arkanoid, and is more original in that it is original (OK a Arkanoid clone) but not just a arcade conversion. It looks better than Arkanoid too.
3 - It has some nice music.
4 - It was one of the first Amiga games I played (included in the TenStar Pack).
5 - I like the name better than Arkanoid.