In output: XHP70 >> XHP35 > X-PL HI
In throwiness: XP-L HI > XHP35 >> XHP70
If you want a dedicated thrower I would rule the XHP70 out completely unless you are looking at very big, very expensive lights like the MF04 and GT70.
Otherwise its just how wide a beam you need. In two lights of equal throw the one with higher max output will also have a larger hotspot which can be useful for even a thrower by making it more versatile.