Just have a question regarding which platform to use or which is the most commonly used sdk platform for development?

I am preparing an application which has a location finder using google maps, and the primary target of client is to make it run on most of the android phones. I was thinking to go with google api 2.2 platform 8, would it be good?

EDIT - 1
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Thanks for the information guys, but when looking at android platform distribution page here:
<http://developer.android.com/resources/dashboard/platform-versions.html>
I get a feel that why not i should go for 2.3.3? any suggestions on this?