Google Checkout vs Paypal Checkout

For the past couple of weeks, I have been working on implementing the XML API for Google and HTML based API for Paypal checkout, it has been an interesting and varied experience.

I personally liked working with google xml API because it seems more extensible and easy to integrate. its a well structured API building on levels of implementation rather than being completely separate implementations, as is the case with Paypal

the documentation is better structured for Paypal, with easy to understand steps.

I found this lacking on the google page, as you sometimes have to search through the developers forum for some specific examples that have not been published on the documentation page

I'll posst some sample code and tutorials here once I'm done with it