“The Strongest Jedi” definitely isn’t right. At best, he’s evenly matched with Obi-Wan. If you apply stupid “power scaling” rules, then sure, Obi-Wan got ganked by Dooku during their fight while Anakin handily beat him. But at the same time that Dooku pushes Obi-Wan, he easily kicks and downs Anakin who’s behind him; Obi-Wan was just the one he subdued by crushing him, ostensibly seeing him as the greater threat.

We’ve seen Anakin lose to Obi-Wan at the (inherent) height of his combat prowess, and it was his own fault. Windu and Yoda probably also take Anakin one-on-one. (Windu, of course, was totally defenseless when Anakin severed his arm.)

If we’re talking about things like the Force, Yoda is clearly much more powerful. There’s an argument Anakin was the most powerful pilot, but that combined with being very Force-sensitive and a very good duelist doesn’t make him “the most powerful” overall. Most potential? If he could keep his emotions under control, probably.