I don't remember ratios, but when I was playing with my friend's Breville, the spinch/apple/carrot combo was delicious. A touch of celery gives it a nice flavor, as well.
Also, juice a pineapple and throw some champagne in. Perhaps not exactly what you're looking for, but delicious nonetheless.
I loooove carrot orange (2 big oranges and maybe 4-5 big carrots = 2 mason jars)
My go-to morning juice is a couple of big handfuls of spinach, 1/6 a pineapple (I always cut them vertically into 6 pieces..), 1 large green apple and a couple sprigs of mint.
Kiwi, mint, apple and cuke is pretty good
Carrot, sweet potato, apple tastes like sweet potato pie
Carrot, apple, lemon, ginger
I'm kind of wimpy with my juices, I'm not in love with veggie-only, I have the palate of a child, for the most part