I spent a few years on the Maine coast. Almost NEVER saw deer, as densities are so low compared to the Mid Atlantic where I am now. I've only been out west once, but found elk on my 2nd day, and managed to get within shooting distance of pronghorn (no tag).
The biggest differences I can see:
- Animal density. Pretty low in southern Maine, and abysmal in northern Maine.
- Sensitivity to humans: I was so much more aware of scent control in Maine, as any alien scent would send deer crashing through the woods. Zero tolerance.
- Visibility. I know it can get thick in the west. That being said, if I walked out my back door in Maine, I could be in total canopy within 50 yards, totally disoriented.
I get the feeling that Maine compares best to thick areas of Washington, Oregon and Idaho.