I regularly use a non dairy beverages to help create vegan meals. I have tried many different types of non dairy beverages and one test I have is to see if a carton actually gets finished. My favourite remains Coconut Dream Original for the taste. Interestingly, this product is fortified with calcium, vitamin A, D and B12 in the version sold in the US, but not in Canada. The easily metabolized medium chain fatty acids from coconut are a nutritional benefit in addition to the taste.
http://www.tastethedream.com/products/product/5346/772.php
Another non dairy beverage I discovered recently and really enjoyed the taste of is Pacific Hazelnut Original non dairy beverage. I found this product in a grocery store on Kauai. The colour is not the most appealing. However, the taste excellent, perhaps from its slightly higher sugar content.
http://www.pacificfoods.com/our-foods/nut-grain-beverages/hazelnut-beverage-1
If you regularly use non dairy beverages, give Coconut Dream or Pacific Hazelnut a try to add variety to your diet.