Both are hard, but it kind of depends on each individual case which is harder. Most of the time with art or writing, I find finishing harder. I think most of the reason is that I'm never sure when to finish, it's hard for me to find that line between not quite done, and over done.
It depends for me. While finishing is always hard, I find it much harder to start something if I don't enjoy it. With my writing the beginning portion is always the easiest - I plan things, I think things and I start writing prologues and what have you that I think at the time are good. Only later I start to question my work and go back - and rarely ever finish. When it comes to writing school papers however... getting that first paragraph is always the hardest thing to do, and finishing can't come any sooner.
It's amazing how "balanced" this is I chose start - if it's something that I'm especially not used to drawing, that first bit seems tedious and feels like the work is going nowhere. But rarely do I leave something I started unfinished...seems like a waste of all that previous time I spent on it
Technically both. At first I can't be bothered to start anything and later on, it turns out to be so shitty that I don't feel like improving anything. Picked "finishing", though, as it's slightly harder for me.