I really like the thornless blackberries. The Ouachita is my fav and also have some Indian named ones that do well...Apache, Navajo, etc. The old standby around these parts is the Brazos berry...big berries, heavy producers, and aggressive spreading with lots of thorns.
I tried raspberries but didn't really like them that much.
I've grown muscadine grapes for many many years. They are practically maintenance free and heavy producers of great flavored grapes. Currently trying to grow the new RazMataz grape which has many of the properties of muscadine but also a table grape. Should get the first of those grapes this season.