Some calories are good value! What I mean is that, nutrient dense foods like good fresh fruit has so much to offer your body in terms of health benefits, that they should almost not count. Ok, maybe thats taking it too far, calories are still calories - but in this case, they are calories well spent.
The 'authorities' here presently recommend that I should aim to eat five portions of fresh fruit and veg per day - and I think thats quite sensible (although what constitutes a 'portion' isnt always clear).
I was reading a website recently about Carbs and GI, and it was pointed out that some fruits had surprisingly high GI rates - but it was recommended that this was ignored, because of all of the other benefits of fruit.
Finally, on another fitness website, I saw the suggestion that snacking on fruit was always permissable - I like that idea. Can you eat too much fruit? I imagine so, I did read somewhere that too much fructose could somehow lead to excess body fat, but it was emphasised that it would consumption of a lot of fruit to do that.