You should check my thread 'Carbohydrates for ENHANCED FLAVOR' ... I got some interesting posts (29 i think?)
Me personally, I see great results using a variety of carbs. My current carbs consist of the following:
-Advanced Nutrients Bud Candy (Great product. I've noticed sweeter, more frosted buds. All plants receive this nute)
-Tropical Organics Banana Extract (Great addition to any feeding program, and is one of the few carbs out there recommended for foliar feeding as well. All plants receive this nute)
-Botanicare SWEET Citrus (I have Mazar's, aka Lemon Kush, so I thought using citrus to match it's natural flavor could possibly bring it's full genetic potential out)
-Botanicare SWEET Grape & Orig Berry (I'm mixing these two together to give my White Widow & StarTrek and see if it gives these any sort of berry flavor, which would not be typical of either strains. First time I've tried this experiment)
Hope this helps, and keep us updated!