Me & my hubby took our 3yr. old son to Macau recently, and also stayed at Venetian for one night. The rooms are v. big w/ TWO T.V.s! One in the bedroom area and one in the sitting area. Walking around the hotel will keep you busy for a few hrs. esp. w/ kids since it is so big. The Venetian deco is v. nice and provides lots of scenic backdrops for photos. There's quite a few rests. there to choose from plus a food court. We chose a Portugese rest. but there was a few smokers outside where we sat which was the downside, and we couldn't sit inside since it was fully booked for a party.
We went to Fisherman's Wharf the next day. You can get there by a free bus service from the hotel to Sand's Hotel. Fisherman's Wharf is across the road. We had a v.nice time here too. There is a train ride for kids and some other attractions but unfortunatley we couldn't see all of it since we had to leave Macau after lunch. Again, we had a lovely meal at a Portugese rest. The ferry terminal is only 5-10mins walk from Fisherman's Wharf. So it was a good way to end the trip to Macau. Would definitely recommend the Venetian and Fisherman's Wharf as the place to visit in Macau! Enjoy your trip!