Peachey played well against a team that really did struggle. But I personally think there are some weakenesses of him, such as his lack of speed and often poor positional play, that better teams will be sure to exploit.... and the wet weather only helped his cause and Souths IMO as well.
And as has been said, you cant really directly compare Peachey and Simmons... both have different styles which are EMPLOYED in their teams for different purposes. Peachey plays more of a playmaking role at fullback..... Simmons plays a support role. And thats all we need, we dont need another playmaker on top of Dykes/Kearney and Kimmorley.... we just need someone with SOME pace to hit the gaps and provide support when needed! With Peachey we didnt have this and it significantly reduced our attacking ability all over the park... particularly midfield.