Q. What wordpress do you recommend to your customers ?

A. The best advice I can give on fighting spam is to have the Akismet plugin installed and configured. I also highly recommend the register-plus plugin as it keeps down fake registration by robots when you enable required fields and captcha, as well as email verification.I also use Google XML Sitemaps to help google find and index my site correctly. Last but not least is the very help ful All in One SEO Pack. If your hosting company is saying that yoru blog is overloading the server you site may be ready for the WP Super Cache.