I'm really big into Layalina solely for mixing, strawberry plays well with a lot of flavors. The afore mentioned Strawberry + Kiwi is always solid, although I use Layalina Strawberry and Starbuzz Kiwi, mostly because it's an oustanding flavor. Strawberry and Blackberry is good, both berries but Blackberry has a slight sour which brings out the sweet in the Strawberry, you might want to do 1/3 Strawberry and 2/3 Blackberry. Strawberry/Peach is also a really solid combo. And my most common mix is Strawberry and Black Grape. I personally swear by this combo, and if you're going the extra mile with some grape or apple juice in the base, it's magnifiscent. Yes, apple juice, the sweetness plays well with the grape. Trust.