While I do love WCC, I would vote to switch it to a TS at Epcot. With only 4 days in the parks - and a complete newbie - I would plan to stay at Epcot.
And here is a thought - what about not doing a TS at all - but snacking around the world? You could get snacks - or even a counter service meal - that all of you split - that way you can sample your way through all the countries. The girls and I did this over Spring break - I think it was the favorite part of the day for the girls!
We had: nachos and churros in Mexico, some sort of chocolate cake in Norway, pot stickers in China, a pretzel in Germany (though I wish we had gotten something in the caramel store!), udon noodles and sushi in Japan (we had planned to get a Kaki Gori - but were getting full already!), a Shawarma platter in Morocco (lamb, couscous, humus), pastries in France - and by then we were about to burst - so we totally skipped a funnel cake in the US and fish n chips in England.
It is certainly not a money saver (I think we spent about $90 doing this!) - but it's a great way to try most everything!