A Malta-class carrier as the core of a post-war Royal Navy fleet

If Malta had been built, which Royal Navy fleet carrier would it have replaced?

It would most likely displace older carriers over time and help form a durable large-carrier force with the Audacious class rather than replace just one ship immediately.

The answer expects a completed Malta to remain useful far into the post-war era rather than replace one carrier on a one-for-one basis. Its presence would encourage completion of more Audacious-class ships and reduce the case for the expensive reconstruction that kept Victorious in service. A force built around Audacious, Eagle, Africa, an Ark Royal, and Malta would be much more homogeneous than the historical mixture. Light fleet carriers would then be sold or retired earlier to preserve crews and money for the large decks. The result is a different carrier system, not simply one extra hull.