Lol, nkereina, I was just going to make the suggestion of staying at POR (Port Orleans Riverside) when I saw your post ^^^...
I was going to suggest POR Royal rooms to you, bcwife76~ the Royal Rooms are a perfect size for 4, and perfect for your two young girls! Very Disney-like! The location/property is so pretty and perfect to take the boat down to Disney Springs right from the resort. It's an outing in itself! Love the boats from POR/POFQ.
The resort has some nice ammenities, middle of the road since it's a moderate. Beautiful property, nice food court, nice pool and pool bar. It's my favorite moderate resort.
A deluxe is wonderful of course, but since you are combining the pre-stay with the cruise and flying from Canada, it can be a pretty pricey add-on. Given that you will be travelling in January, there are no guarantees for warm/sunny resort days. You can spend a day taking the boat to Disney Springs, shopping, etc. and perhaps a day on the monorail loop, lots of fun things to do there! It's perfect for a 2ish night stay!
If you are looking at a value, Art of Animation/Little Mermaid rooms would be a perfect fit for your girls, and you hardly feel like it's a value resort with so many fun surroundings.
For a deluxe, all of them are fantastic! My favorite is the Polynesian.
You didn't ask about resorts, but I figured I would write anyway...

I've been reading your posts on the cruise board too and so many of your posts are so helpful!
