Slacker head angle as I'm going to run a longer travel fork (120mm as opposed to 100mm travel). Generally I ride quite steep technical stuff, TD is the exception to this really. I'll probably run a rigid fork when I ride that again.
Presumably you can get away with rigid because you have enough ability to ride techy stuff without suspension. To be honest I never notice any difference on my little xc races with suss fork vs. without. I seem to crash just as much on either bike.
For the same type of riding? What's the slacker head angle for?