Which Anisotropic Diffusion Method is Best for Denoising Now?
I think "Fast Anisotropic Smoothing of Multi-Valued Images using Curvature-Preserving PDE’s" by David Tschumperlé is really good.

I started implementing it using MATLAB once, yet I didn't finish.
If you do implement it, it will be great if you updated us.

Update

Have a look on my implementation at Fast Anisotropic Curvature Preserving Smoothing.