I went through the whole Power FC vs Wolf 3D V4 thing a little while back. As some of you know, I ended up getting the Wolf through SST and to this point, extremely happy with it. I have 260rwhp at 15psi using stock turbo and injectors on a SR20DET (S14).
Why did I go for the Wolf?
1. Laptop tunable - there is so much more resolution and it is heaps easier than using a hand controller
2. Built in boost control - no need for aftermarket EBC
3. Can use MAP or MAF - with the Power FC you can only use MAF (unless you get the D-Jetro, which is JDM market only, thus no warranty in Oz). Sure you can buy a Z32 MAF, but that adds another $300+ to the price of your modifications
4. Logging - the Wolf has simple logging on the handcontroller, advanced PC based logging coming soon.
5. Price - at near $2k installed and tuned, can you really go wrong? And this is with local support and warranty.
6. Multiple maps - using either a laptop or the memory modules, you can switch between maps on the fly.
There is heaps more, and I love it :-)