I've stayed at HIFS countless times (okay, probably around 18ish different times since they've opened.)
I like QUIET too, and actually would say an upper floor parking lot view is definitely the most quiet. On a corner, so you don't have neighbors is even better. People tend to walk to and from their rooms on the pool side, not to mention the pool noise floats/filters up somewhat anyway, moreso into the sitting area though. The masterbedrooms seem to be better soundproofed.
Anyway, that lil lake they have is also where the food trucks deliver; I know on one visit I was awakened each morning to the beep-beeps of the truck backing in at exactly 6am when we had a 'lake view' room.
Have a great time, and definitely get the Priority Club card...2pm checkout and often they have some kind of free gift (like a coupon for 2 free coke products and a free popcorn from the on-site store)