I was thinking about getting an early lunch seating to request a table by the water, but my wife wants to get the dinner menu. Is there a time where its not crowded where for dinner we could more likely get a table by the water? What time should I book?
by the water 

So I probably should keep this secret to myself but since I've learned so much on the boards about WDW, I'll pass it along
We've eaten there 5 or 6 times and ALWAYS arrive 5-10 mins early and ask for a water table. We are always told the same thing: It could be 30-40 mins and we must stay near the podium so when they call us we can hear them. Each time we smile and say no problem. Max wait time: 15 mins. Seriously! I think they do it to discourage people. Wait it out folks!!! Well worth it!!!