Personally, I would not prefer an end-zone seat, but at the Lions game last year I got some cheap seats on the 40 in the Front Row on the Raider sideline. If you do, be prepared to stand--- the players kinda block the action, and you're further away from the field than you would expect due to the baseball outline shape. But it was great (except fot he game ending, of course).
If you sit on the away side or on Mt Davis, be prepared to be in the sun and squint the whole time. But just get there anyway!