I had tried EmguCV. The range of functionalities it supports is fine. But if your project is something in which the speed is an issue, then it would be better to brush up your C++ skills.
I do not know much about other wrappers. I was in your same position once. I worked in emgucv during my academics and had to shift to c++ in my profession.
Believe me, you wont find it too difficult to move onto C++.
