We've stayed at WL and we prefer CBR! We like the spread out nature of the resort -- it keeps it quieter, honestly... Safetymom's photos ARE wonderful, aren't they?? We chose CBR because of her photos and info a few years ago... which leads me to your questions. Just my opinions, but...
(1) The bus service at CBR is great -- just did our second visit to CBR without at car -- longest wait for a bus was 15 minutes, most were like 5 minutes... (2) Safetymom might have a picture of the hot tub -- it's fairly small, to be honest. (3) Just remember that Aruba 51 is the only smoking-optional building at the resort. You can request a bay view, but there's no guarantee you'll get it. The "water-view" option at CBR does cost extra, but it could just as easily be a view of the village quiet pool as a view of the lake. I wouldn't pay the extra, personally, for the water view. We ended up with one by chance in our 2005 trip (photos of the view we had are in the link below). Both times we've had a corner room, not by request, we just ended up with it. This year's trip, we often didn't even open the second set of blinds -- just weren't in the room that much. (4) Our first trip was 2nd floor, this year's was first floor, and I didn't notice any difference in noise at all -- both were really quiet. (5) This year's room, Trinidad 3128, opened out to a courtyard that then had a view of the lake -- awesome! You could easily sit out there at the tables while your kids are in the room asleep. The courtyards are really nice (photos in my 2007 link below). (6) Shutters does not serve breaksfast -- I'm not 100% sure they serve lunch, but Safetymom could tell you. I haven't eaten there, so I'm no help on #7.
You'll love CBR if you try it! It's our favorite!