I use Gaspari myofusion as all the flavours I've had have tasted good and that is a mix of whey, egg and milk proteins which have the different release rates that neilp was talking about. It also has CLA to help burn fat and flax seeds which sounds like its something you're looking for, rather than muscle building. I can recommend the chocolate peanut butter, tastes like a snickers.
The phd diet whey could be a good one also, with ingredients to speed up metabolism and burn fat but I don't have personal experience of it. They also make a phd diet whey bar if you prefer that to a shake.