No offence here, but that isn't a good example of the bryce render engine compared to posers. There is no hair texture other than trans on that example (bryce version) and as has been pointed out, with a little tweaking with materials like bump, specularity et al, the results can be much higher!. Posers only real advantage IMO is it's pseudo soft shadowing.

Adam Benton | www.kromekat.com