@Adetoun Both are great plugins, they pretty much can help you rank well in search engines. I have used both, but

I have used both, but currently I’m using All in One SEO. Had to switch from yoast due to the recent upgrades that broke my site. But Yoast version 2.3.5 was pretty cool.

I think you should go with whatever seems more convenient. If one of the plugin is giving you a headache or hard time, switch to the other. Other options that have good reviews include:

  • Greg’s High Performance SEO
  • SEO Wizard
  • SEO ultimate

You can however start with All in One SEO.