Agree with Gorbelly on Mitoyo. Grew it last year, and it's definitely a repeater!
This is the one they say (BC does) is sweet enough to eat raw. It IS good.
Mine for this year:
Mitoyo
Kamo (just about as good as Mitoyo)
Round Mauve (both Kamo and Round Mauve are softball-size for me)
Kurume (nice OP substitute for Ichiban, but even sweeter)
Listada di Gandia
Rosita
and one Ichiban I picked up at the garden center.
All except for Ichiban are OP.