I hated soymilk when I first started drinking it about nine or ten months ago. Absolutely hated it. I hated it to the point where I would pour a perfectly good cup of tea down the sink because the taste of soymilk in it made me gag. But I soldiered on... and on... and on... until eventually my taste-buds adapted and now I go through quite a few cartons of the stuff by myself every week.
I drink the cheaper brands (You'll Love Coles, So Good etc.) and they taste fine to me. I've never tried Bonsoy simply because of the cost issue and because I'm not sure that it's calcium enriched (although, if anyone has information to the contrary, I'd like to be proven wrong.)
Anyway, sorry about all the blathering; what I was trying to say is that, for me at least, it was simply a matter of an acquired taste. Perhaps the flavoured varieties may help; I love the strawberry So Good on my cereal in the morning, and the chocolate flavour is awesome in hot cocoa or even coffee (like an automatic mocha.)
For a healthy (but yummy) dessert, I also freeze the mini/juicebox-sized chocolate So Goods and eat them with a spoon, just like frozen Big Ms at the primary school canteen. (Ah... memories!) Perhaps something like that might help you adapt to the slightly soy-y taste? If you're interested in trying it, just be sure to shake the box well before freezing it, or you'll end up with a rich, chocolately lump down the bottom and the rest will be rather bland.