You are definitely not the only one that doesn't like them. One of my best friends thinks it is disgusting and uses Gatorade instead. Gatorade just tastes really sugary to me. Also, it's not like I use them on a regular basis. I use them only when I run, and like them well enough for that.
I will say, I agree that if you have too much water per tablet, it still basically tastes like water. I think the tube recommends dissolving it in a 16.9 oz bottle or something like that, but I try to dissolve mine in only about 12 oz of water, which is what fits into my two iFitness water bottles. It makes the flavor a little stronger that way, but not too strong or salty.
As for flavors, I've never been a fan of the cola or ice tea flavors. My personal favorites are grape and strawberry lemonade, but I also have and use watermelon, triberry, fruit punch, and orange.
Also, there's a cherry limeaid? I've never seen that one, and would try that in a heartbeat!