What Web Services implementation do you recommend?

[wvxvw]

Hi all.

I'm going to write a small generic purpose library in ActionScript for SOAP / REST(full) web services. (A client, apparently). So, my question to you is: what server-side web services implementation should I consider as the most correct / most widely used when I run my tests?
So far I know that PEAR has 2 different libraries for it, besides there's NuSOAP, WSO, WSF and there're PHP5 SOAPClient / SOAPServer classes. So, which one do I have to use, and why it is better then others?

TIA.

[sneakyimp]

I inherited WSO for project and although I got it working eventually, I had some problems. Support wasn't all that great but there was support and I did get it working. I assume you are referring to the WSO here.

I've seen folks asking about NuSOAP around here before but I haven't used it myself. It appears to be a pretty mature implementation from what I can tell and they have a support forum on sourceforge.

My instinct tells me that using the PHP5 classes might be a good idea because they have a section in the PHP documentation. I cannot say for sure that it's better than the others, but I would suspect it would be the easiest to acquire if one were to set up a PHP server.

Just my two cents.