Some guy with way too much time on his hands put together a Star Wars vs. Star Trek video using clips from both the Star Wars movies and Star Trek shows. Absolutely hillarious, except for the part where Enterprise even begins to approximate the power of an Empirial Fleet.
Feel free to debate all its geeky goodness. You may feel free to reference (and post links to) other Star Fleet vs. Galactic Empire sites. Here’s my contribution: StarDestroyer.net.