Google Webmaster tools along with Bing Webmaster Tools are some of the best and only direct Webmaster tools around, and Yahoo actually recommends using both as they've shut down their webmaster tools a few years back. The top three search engines are Google, Bing, and Yahoo, so focusing on Google and Bing will yield the best results and insight regarding your website stats/etc. If you're looking for a more 'business-oriented' SEO tool, my recommendation would be Moz (https://moz.com) as they offer in-depth tools for SEO Optimization including research and analytics tools in order to ensure that you're maximizing your SEO.
Thanks for the question regarding SEO/Etc, I'm sure this a topic that will assist a lot of other people! 
