It's my long time doubt... for indexing the website urls, which extension of pages google likes ... example: www.example.com/tutorials/some-thing.html or www.example.com/tutorials/some-thing.php or ???
Google may index any page extension or any software people use for their site, as long as it meets their quality guideline.
google friendliness of static pages seems a little better, but there are that google page of these two formats is the same as
Googlebot does not discriminate as long as your url's are clean without too many query string parameters, session id's, etc, you'll be fine with html/php/asp or without any url extension by using htaccess
Google treats both extensions the same. The more important thing you should focus is you should have better content inside.
Google is not biased with any URL format, it just how easily it can discover the URL. Actually will crawl both, add it in your Sitemap and throw it on poplar blogs which frequently get crawled.