I had LV in Hawaii, Tuvalu and Tahiti.
My favorite was Tuvalu because you are right on the water. No beach (though there is a beach very close that nobody ever uses), no palm trees, no people walking by (like Hawaii), no nothing. There are a few palmy things, but you have to look down to see them. If you look out the window or are sitting on the balcony, all you see is water and stuff in the distance. I never stayed on the 1st floor, though.
Hawaii is more public than the others, IMO, but you stay "club level," which may appeal to you. You are right on the beach where they pipe in the music for Wishes, which is nice. It is close to the pool, too. I'm kind of anti-club level for my own silly reasons, so I don't recommend it. There are plenty of folks who will, though.
Tahiti is on a beach that isn't used much. There are palm trees there that block your view, though. I saw about 1/2 of the EWP because of them. It is about as far from the Great Ceremonial House as you can get, I think...it is a pain when it rains. But it is very close to the Ticket and Transportation center, which is a big plus.
Depending on where you are, you see more or less of the Grand Floridian, Magic Kingdom/castle and Contemporary. There are different kinds of boats zipping about (and the ferry honking its horn, which you will hear if you're in Tahiti), the EWP at night (if Wishes isn't at 9:00), Wishes itself

, and sometimes you'll see someone parasailing over at the Contemporary.
I think Poly Lagoon views are some of the prettiest in WDW. But you do pay for them, that's for sure. Unless you luck out and get it for free, that is.
