Delta Chelsea -- This perennial family favorite has a Family Fun Zone, a multiroom play area with live bunnies and fish, a video arcade, and the only indoor waterslide in downtown Toronto (it's open year-round, too). You can play together in the family pool here or drop off the tykes for babysitting. Kids will enjoy the in-room family movies, Super Nintendo, cookie jar (replenished daily), and nightly turndown gift. Some of the Delta Chelsea's restaurants have half-price kids' menus, further reducing the strain on the family purse.
Four Seasons Hotel Toronto -- A hop and a skip from the newly renovated Royal Ontario Museum, this hotel has its own attractions. Guests can borrow free bicycles and video games, and use the indoor pool. Upon arrival, room service brings the kids complimentary cookies and milk. The concierge and housekeeping staff can arrange excellent babysitting services.
Sheraton Centre Toronto Hotel -- The endless attractions of this complex -- including restaurants with special menus for tykes and a cinema -- mean there's a lot to keep the little ones entertained. There's a supervised play center, as well as on-call babysitting services. Kids also enjoy in-room video games and a welcome gift. A limited number of Family Guest Rooms boast a toy chest, some kid-size furniture, a fridge, and a microwave.