What are your guys' opinions on the age old question? What do you prefer?

Edit: I currently use trackpad, but I have been considering trying out a mouse.

My trackpad is pretty bad and I generally enjoy using mouse a lot more, so I guess my answer is mouse. I use Razer Atheris at 2400 dpi, it's a good mouse if you travel a lot (for example, I take it to uni sometimes), it's also pretty heavy, which I like, and is one of the cheapest Razer mice.

I use trackpad and I honestly can't control myself with mouse. Just my opinion.