I went last year and sat in like row 3 or 4 of the "poncho section" just off center. I didn't get hit with anything.
There is a good gap between the first row and the stage, and the stage isn't really too high up, so I don't think you'd have too many issues in the front row if you wanted it.
The poncho section does supply cheap plastic poncho's in case of splatter, but it's not like a Gallagher show where things are constantly flying into the audience. There may be a slight bit of splatter from the drums or paintballs, but not enough where you REALLY have to worry.
The first rows of the non-poncho section are also not too terribly far from the stage either, so if you didn't want to even worry about any splatter, you could always try for the first couple rows of that section.