X-bows are still pretty effective in closed off areas. Namely because they can shoot around corners faster than anything else and hide to reload. on the open ground though, I just laugh at them and pew pew away. I think a re-deployable pavise would help crossbowmen where they're the weakest and even things out between them and archers.
as it stands I go about 50/50 agianst great crossbowmen, as an average archer, this isnt really acceptable (for them)
another problem is how WPF affects crossbow accuracy. nothing should be accurate at 0wpf. Let the people who spend points on Xbow wpf earn their badassitude and extra accuracy.