The Hyatt you are staying at is brand new! It is connected to the City of Dreams casino complex, which offers a shuttle to the Mall of Asia which is less than 1 mile away. Of course with traffic that can take up to 1 hour to reach.
The IC is a nice place but older. It is located within walking distance of 2 large malls in Makati.
Taxi's are easy to find and cheap. From IC to Mall of Asia is usually less than 200 pesos ($5) on the meter. From the Hyatt, the shuttle would be best.
Hope that helps a little.