What is the best free classifieds script?

[Fli]

Which free classifieds script do you know and like, have experience with?

I seen people recommending these free classiffied scripts:
http://www.dclassifieds.eu/
http://open-classifieds.com
http://osclass.org
"awcp" Wordpress plugin (home)
"ed_classified" Drupal module

[deepaksh]

PassUp is one of the best scripts based on the concept of an online classification platform.

[RuskinF]

PassUp is one of the best script, based on the concept of online classified platform. It gets revamp birth from Letgo with the stunning workflow. PassUp presented with powerful and fired up features for both entrepreneur and users. PassUp is one of the best script, based on the concept of online classified platform.

[Stellajones]

PassUp is one of the best scripts based on the concept of an online classification platform.

[blueclassy]

blue classy is also a best classifieds script.

[Instamixes]

Osclass is the best Free PHP Classified Scripts.

[Clearsky]

nize nize nize very nize or nice btw i'm alchogolic

[DavidBaldwin]

For me, Open Classifieds is the best because of the PayPal integration and the ability to create custom fields.