Error handling for multiple applications

Hi,

We have multiple applications hosted at different locations.We are planning to log error for all(20+) the applications in one database and eventually have a dashboard for the same.

Now , I am confused which approach will be best :

1- create a webservice(WCF)  connect to centralized database and call the webservice from all the applications to log the error in centralized database.

2- write the logging code/methods in each applications and connect to centralized database , and log the error.

Appreciate your help & reply.

Thanks

Sush