While we're quickly discussing what programs we used, I tend to use Illustrator, Paint Shop Pro and a handful of freeware tools (I think I used the
GIMP for something, but I can't remember what). My last one was mostly Photoshop.
I put in between 30 mins and 3 hours work each*, not including the time it takes to think up. It usually takes longer than I thought, but I'm getting quicker.
Oh, and I'm quite pleased with all but my last submission, save for a few annoyances.
* That was the one versus ruo. For such a simple layout, it took a staggering amount of time to put together.
Pirate.