[Spenner]

It depends on what the graphics are that you're putting it over, and the mood you want to convey. If you make it too graphical in itself, then it won't be very readable. You also need it to punch out from the background; in some cases, the more generic techniques like strokes are a very easy way to make the fill portion of the text punch out, but a hard shadow, or just simple good looking text can stand out on it's own.

Got an example of the graphic you want the text over?