If we're talking about the OT vs TOS, it's difficult to compare because of how different they are, as everyone has been saying. Star Wars had better special effects obviously, and better music. Overall the acting was better as well. TOS was more serious and realistic though. Star Trek was also 'deeper' in my opinion, with more philosophical and psychological elements, though Star Wars had those too, just more subtle. Both had great characterization, but with the exception of Spock, I'd say Star Wars has just a slight edge in that department.

With the franchises as a whole, I think Star Trek is consistently better written, better acted, smarter, and more believable. But in the end, I agree that it's completely pointless to argue about it.

I'm somewhat surprised by the negative views of the Star Trek 'reboot'. I loved it.