Everyone has different ideas about these questions, but here's my take. On a hunting rifle, reliability trumps accuracy, and fire forming followed by neck sizing is a technique designed to optimize accuracy at the cost of effortless feeding. So I full length resize and don't even think about neck sizing the ammunition I'm loading for a hunting rifle. But don't worry, in the field you would never be able to make use of the accuracy you give up compared to neck sizing only. More importantly you won't have to struggle to close the bolt, and if you find yourself in a situation where you need a fast follow up shot, it'll be there. The down side is that your brass might not last for as many reloads, but I believe this disadvantage is offset by the reliability you gain by full length resizing.
Redding manufactures die sets that include a neck sizing die with a decapping pin and a separate body die that is kind of cool because it will allow you to bump the shoulder back a hair if your neck sized ammo prevents the bolt from closing easily. These die sets can be had with with either a resizing ball or with interchangeable bushings so you can influence the amount of grip the case has on the bullet. The bushing sets though do tend to be expensive and your ammo might not be any better than if it had been full length resized with a standard die set, so IMHO you might as well use the extra cash to buy more bullets to load. Some hard core target shooters will even have dies made up by a gunsmith using the same reamer used to cut their barrel's chamber with a set amount of shoulder set back built in, but that is far beyond what most of us need.
I might stand out as the exception with regards to crimping. I crimp all my hunting ammunition that has a cannelured bullet. I don't worry about seating the bullet long to sit on or just off the lands because I want the round to feed through the magazine without hanging up; the reliability thing again. Crimping provides the benefit of uniforming the bullet pull weight just like seating close to the lands does, but it doesn't affect the feeding of the rifle like seating the bullet long can. While the recoil of an 8mm isn't likely to drive bullets back into the case, that is certainly a benefit of crimping more powerful rifle cartridges. I just think crimping makes my ammo a little bit better.
If you do decide to crimp, do it as a separate step from seating the bullet, and take the time to adjust the die for uniform results. One method is to back out the seating stem of the seating die and back the die off, then run the ram to the top of its travel with a loaded round in the shell holder. Screw the die down until it stops against the case neck back the ram off, adjust the die down an eighth of a turn, then run the ram back up. Examine the crimp and adjust the die as required, then once correct lock it in place. Another method is to run the ram to the top and screw the die down with your thumb and two fingers until it refuses to move. I sort of like this way better because it tends to produce more uniform results once you acquire a feel for it.
