I'm guessing where you are hunting there will be trails, benches and water that will determine to a large extent where "camp" should be. If there are water sources on the mesa (or ridge top) and that gives you access to the most finger ridges and draws for glassing, then that is a likely candidate for a place where you can get to a glassing spot quickly in the morning and a place with easy hiking back to camp after you "put a herd to bed" in the evening.
Provided you have your camp in a sheltered area, I would not expect a great deal of scent pollution so long as you are not right on top of elk night feeding areas. I did discover a backpacker's tent in the head of the creek, near the saddle where I killed a herd bull on opening day. The survivors probably walked right by it in rifle range...
Summer or preseason scouting will also show where big camps have been historically. This is your best clue for what works for most folks that hunt the unit. of course horse camps will be farther and less concerned about having to climb.
FWIW Buzz's advice is worthwhile. But remember you don't always have to pack game back to your camp on top the ridge. Many a meat cache has been made near the trail back to the trailhead to reduce packing up hill more than necessary.