Blueberry should taste like a blueberry if it is a true strain. I have tasted it before. Same with Juicy Fruit, it is very sweet going in with a similar after taste.
Juicy Fruit is what i know about. very strong plant, great yeild.. 2 1/2 OZ per plant with no CO2... Very sticky and smelly after about 4 - 6 weeks of flower. The flowering of mine was a perfect 65 days for a good 50/50 mix of trichs. they were very consistant and right on time everytime.