Pomegranate seeds: beautifully juicy and I can cope with the texture of the fruit itself, but the actual seeds proved problematic. I'll work on it.
Raspberries: actually nicer than I was expecting but also quite different. Again with the seed problem...
Blueberries: weird. Kind of like grapes. Further tests required. ;)
Blackberries: definitely not. Don't like the flavour.
Banana: tastes okay (tangier than I was expecting) but the texture's a bit... bizarre.
Anyway, I stuck the remains of the banana into the smoothie maker along with a couple of spoonsful of pomegranate, a few raspberries and some strawberries, and a lot of apple juice. Then I had to sieve it to get rid of the bits of seed, but it actually tastes okay. That's desert, then. ;)