I have them both, picked up on the cheap from the shop. Now, with little playtime in Jericho (only at the part where you enter the open area with the turret gunners or whatever) and almost all the way through Dark Sector right now, I think these 2 games are decent titles. Not solid award winning stuff by no means, but I would rate them 6.5-7 of 10 without haste.
Anyone play them both? My concern is the story mainly. Dark Sectors kind of gets lost in the gunfire and frisbee action and when I finally sit down to play through Jericho I wonder how well the story remains intact so that halfway through Im not asking who what where and why all over again. That could seperate these two titles in my opinion.