Best seo tools

hi everyone,
i m looking for a good complete seo tool, especially to make easy reports for clients. I tried webceo but i m not totally satisfied about this software. is somene know good webtools for english and non english optimisations ? with good and easy reports for keyword audit, link audit and statistics ?

Thanks in advance,

If I were you to save money purchasing softwares. I will use MS Excel in the analysis and convert to pdf for reports because this is common and can be accessed easily by clients. I suggest, you need to have an SEO checklist then put in Excel spreadsheet with your company logo and do the analysis using the tools you trust in the internet then convert that to pdf. It looks professional and cost nothing.

thanks for your answer. which seo checklist do you use for your clients ?

Emerson is right... i usually analyze first the site before starting the optimization.. to know what will be the best move.. and i don't focus on one tool.. i use different tools that is available... and get some more idea..

Simple way but detailed

I am using a tools from seo administrator site. you can use it.