I guess most the jobs I do are 1-3 day range, but since we're professionals our 1-3 day range is the average homies month. I like the in and out jobs since it's fast cash so long as you have them stacked and can go onto the next, etc...
I like the larger 1-2 week projects cuz it gives me the safe fuzzy feeling in my gut that I actually have a place to "go to work" everyday, but by the second week I lose a little motivation/start getting bored since I like change.
I used to think years ago when I subbed, why would anybody turn down these quick in and out jobs, well after selling some sizable projects "to me" and the profit margin, I now understand why "most guys" just pass the smaller jobs along the food chain. I try to take on anything since it's easy to squeeze a small one here or there for fillers.
I like working alone so I dont have to baby sit or worry about somebody screwing up material/property, but I have no problem subbing work out and giving subs a hand either, it's nice to have other folks to talk with on a job other than the homie so we can share business stories and the like.