Darth Krayt may have won his earlier round but he’s not going to be able to do much of anything against Ichigo. Ichigo is a Soul Reaper who even surpassed the Captains a while back. A single Getsuga Tenshou would be able to knock Krayt out of the running. No Force barrier or anything or the sort would be powerful enough to stop an attack like that. Ichigo is just in a different league and he continues to grow stronger with each arc. Once the anime adapts the final arc you can expect his feats to really explode. Ichigo wins.