It seems that every year I change this up. For the most part I go with a drop points blade as well. I have found that I like 3 different knifes. I like to have a folder in the field. I mainly go with a folder because it fits in my pocket or pack easier. I don't like having the fixed blade on my hip because I tend to lay on my sides from time to time.
Last year I field dressed, skinned, quartered and de-boned all with a large Case Trapper. That worked out well for an all in one knife. But I also think I just had a mental challenge of wanting to do it all with a pocket knife.
Also, I don't dishwasher my knife...but with a folder, you have to take a little extra care when cleaning it. So it's a valid point that cleaning a fixed blade is easier.
You might also look for a folder with a gut hook if you like those. While not necessary, the gut hook is kind of nice.
But this year, I may just carry my trapper in the field and use a separate fixed for skinning and de-boning. I have a few to choose from. When butchering, its nice to have a few different ones. For skinning, I like something small and nimble. But sharp is the key. Then of course, when it is time to take the back straps or when you are clearing out the pelvis, you need a fairly long blade...well..4 or 5 inches. But not a very wide blade either. A narrow blade is useful when trying to reach up in to the pelvis and cut away the membranes that hold the bladder and other goodies.
I will make this comment about steel. If you buy quality steel, the benefit is that it will stay sharp longer. So if you are like me and sometimes butchering 3 or 4 deer in a weekend, you may not have to stop and sharpen as much or at all. But if you go with some cheaper steel, then you might need to touch up a little here and there. But it's really not a big deal to pull out a stone and touch up the edge a little. Harder steels stay sharp longer...but are harder to sharpen. So if you feel that you need to have a pro put your edge on, then make sure you get a hard steel.