Hi,
I have a front winch mount on my H3. I had it custom fabricated and it can easily support a heavy duty winch. The problem like someone said is tat it has to be installed low beause of the radiator. Mine is low and does affect the approach angle but I usually am fine for 95% of my off roading.
I don't recommend it because it really is to low but is fairly affordable. I have a portable winch carrier and I only put the winch on when I go to the trails. This means that it is safe from theft and doesn't put extra strain on the suspension and so forth.
If I could do it all over (and if Cris had his product before my fabrication) I would go with what Cris has.
That design keeps it up high and easily accessible for the off road in case the winch wire wraps up or something.