Definitely Urban Decay Primer Potion.
Why?
Well, first of all, it does NOT crease my shadows.
And coming from an oily-skined, Asian small double eyelid-ed girl, that's pretty good.
Second, it makes shadows POP. The colour shows up much more vibrant.
And lastly, my shadows don't fade and don't budge. They stay put for the entire day, until I decided to take my makeup off.
And yes, the packaging is agonizing, but try to use as much of it as you can before cutting the tube open. When you begin to get that feeling like it's running out, take out that small plastic ring that's in it. That little small plastic ring is what squeezes down on the doe foot so that you don't get that much on the wand. However, if you take that out, you will be able to get so much more product.