RE: 30-06 or 7mm
I will pick the 7mm any day. Its good for deer not an overkill, flat shooting, can be loaded with big 160 or 175 grain bullets to handle anything in North America, not recomended for big bears, but it could work if you had a proper bullet. If I were choose between all the calibers you have posted about I would choose the 7mm overall. From the sounds of it you will mostly deer hunt but want to sometime elk hunt. I feel the 7mag will fit that need rather well. I like it for deer and antelope hunting with a 140 grain bullet. Its great for elk hunting where you might have a long range shot, and it can be loaded heavy for moose and big bears. Then on the other end it can be downloaded with a small 120 bullet for coyotes if needed. IMHO its a better do it all cartridge than the 30-06 and others.