Well lets see..
OSPF:
Keeps a link state database of all known routes (fast convergence)

Stub Areas (Keep cpu load off of less capable routers, while larger routers handle the backbone)
With stub areas you have highly summarized routes, or just simply a static route out of the network.
This keeps slower routers from having to use memory and cpu, also keeps them from having to converge when their is a link down or flapping.

Each OSPF router has its own link state database, not learning of what routes to use from some random other router.
Having its own map it can inject loop free routes into the routing table.

Highly configurable over mutiple network types

As for Slaine's responce..
This is true but OSPF is made for redundancy and fast convergence..
Building a proper network whould include at minimum three routers in the ospf core.
All of them linked back to back for full redundancy.

One other disadvantage is that all areas must be directly linked to the backbone/core area 0.
You can use a virtual link between one area to get it to the core but for a couple of reasons this is not recommended..

Area 5 -------- Area 2 -------- Area 0 'Backbone'
|-----------VirtualLink--------------|