Of the games I've played, my top four are, in order of greatness:
Cover Girl - stunning to look at, simple rules, very hard to beat. A classic, if ever there was one.
Hurdy Gurdy - I'm not mad on AABs but this one has it all, colours, art, game play, another winner.
Cross Town - the first game I ever owned, still do, keeps me coming back for more.
Sun Valley - joint first, a true pinball, not a flipper, it's got everything a bingo nut could want.