In a way, kind of a strange question. How do you tell how they compare when there are few or no objective measures of effectiveness? Yes, a ship in EVE can take down the shields of another ship in EVE so and so fast, but how does that relate to shields in X?
The few things that are absolutes - range in EVE is much larger, which does imply better weapons/technology. Number of ships in EVE is much larger. Both are in a constant civil war. EVE ships mount roughly twice as many weapons.
All in all, I'd say that in a war between the two, you'd have a lot of graphical glitches and connection problems. 
