Board Thread:Versus Debates/@comment-26388300-20150529202533/@comment-26518343-20150629150411

Neither had peaked at the time of their deaths, but I'd bet on Kimimaro.

Kimimaro's greatest established feats were beating all of the Sound Four by himself and then later containing a future Hokage and Kazekage while also fighting a taijutsu ninja.

On a side note, Naruto and Gaara got better between this time and the end of the series but if he had lived, Kimimaro would have continued getting better.

Neji's greatest feat in battle was killing Kidomaru.