I have mixed views on the Water Temples. I originally had trouble with OoT's Water Temple, but now I have it down to a science. Majora's Mask's Great Bay Temple didn't ever give me any trouble at all. Lakebed Temple on the other hand confused the hell out of me. I didn't like the layout much and I always end up getting stuck. I agree with you that the bosses suck for two of the three, but I rather liked Gyorg. When you fell into the water I was always so terrified. I tried so hard to make it back to the platform as fast as possible.