Common Send****t - how should i define

Hi, 

Let me descibe you the following scene, 

You have several applications each application contains several Send****ts,

Most of send****t locations are reffer to the same target (let's say DB). 

how would you define your Send****t 

1. For each ****t define it's own Send****t ?
2. Define 1 Send****t for each Application , All ****ts reffer to it ?
3. Define a common application with 1 Send****t , All the Applicatins are 
reference to it ?


Is there any side efect with each of the configuration ?


Thanks for advanced 
Amit.