EHCache or OSCache

[Joseph Jegan]

I am thinking of implementing Caching for our web application to boost the performance.I have selected to use either EHCache or OSCache. Among the two which one is best? Please share with me some of your experience in using the above two products.
Following are the features of my project:

I do not require Distributed Caching

Most of the Operations are Read-Only Nature

I need to Cache only Serializable Java Objects

Should be Open Source

Ablity to configure the Caching declaratitively

My project doesnt use Hibernate

Thanks