Pawpaws - I've tasted about 30 named varieties and 60 seedlings. Of the varieties there are a half dozen I really like (Susquehanna and Shenandoah from Peterson (and I think his Potomac), NC-1, Taytwo, and #21 - can't remember name). The Shenandoah is probably the quickest to start fruiting, and overall one of the most dependable. Of the seedlings I have settled on only one of them being in the same class as the very best.
2009 Pawpaw Cultivar List and Fruit Photographs