80% of my deer hunting is done on the ground in a spot and stalk senerio. There are a lot of good boots out on the market that can replace your rubber boots and still remain waterproof and scent reducing. The biggest thing is to know what terrain your hunting. If you are looking for stealth, look for a soft sole so you don't get a "clunk" on rocks, sticks, and logs. In wet areas, get a boot with a waterproof membrane. Steep areas you may want a high boot for ankle support. There are "sneaker" style hunting boots out there that offer a very quiet footfall. Moccasins would be ideal for sneaky walking if you can get used to not having a supportive sole.

In my area it is steep, rough rocky terrain, with the occational rattlesnake sighting. I first went for a pair of snake boots, but found them uncomfortable, as the kevlar lining sewn in the uppers would rub and cut on my ankles. They would be ok on more flat country, but just didn't work for me. I ended up with a set of boots 16" tall, soft outsole, great foot and ankle support, waterproof, and have a scent eliminating fabric. They seem to work well for me.