Definately raspberries. I buy this great big bag of frozen all year round for smoothies and treat myself to fresh in season. Strawberries are a close second, followed by apples but only if someone else cuts them up for me - I'm lazy and have a bad jaw so they have to be sliced up.
Now, what about veggies...... zucchini, hands down. Grilled, stir fried, grated into anything (included my morning eggs). Yum