I almost always use the stylus, and when I do use my finger I use my fingernail (palm of my hand facing away from the screen, I never actually touch my skin to the screen. This is because I get more precision, speed, and obscure less of the screen, and I also don't like to get fingerprints on my screen...

For example, if you try to use file manager and do a long-press to get the "Right click menu"", if you're right-handed and using finger, you can't even see the menu... but with stylus it's visible. The web browser is almost impossible to use without stylus unless you like to zoom in and out constantly (which I don't).

Once in a while I'll use someone else's device that has a capacitative touch screen and it makes me crazy. I press it with my fingernail and nothing happens. Then I have to put my actual finger into the other person's disgusting skin oils to use it... and then immediately wash my hands so I don't get H1N1 from their slimy screen.