It all depends on the circumstances for me. Rain, wind, where a deer is looking, how tense the deer is, etc., all factor in. I've passed shots at 10 yards when a deer was staring me down, and shot a few over 30 yds. My closest was 6 yards.
My longest was probably 45 or so. It was in the mountains and I was making my way up a ravine with a good sized creek flowing down it. I about 30 yards up one side of the ravine, and a nice buck came sneaking down the opposite side. I was standing behind a big oak and peeked around until I could see his shoulder. I zipped an arrow right through both lungs. He took a big leap and just stood there. He started wobbling a fell not 5 yards from where I shot him.
The conditions were perfect for that shot. He was perfectly calm. The wind was in my favor. The creek gave a lot of "cover noise". I really didn't think about how far it was until I went to get him.
Like many others, most of my hunting practice is stump shooting. I could care less what the distance is, and rarely pace one off. All I care is that I hit within a feather's length of my intended spot.