I give special considerations for special weapons e.g. quantum torpedo's, Heavy Turbolasers etc
so in a nutshell everyones generally on an even plane
and I just go with what I feel like should be able to take on each other.
I use LightWave too.I am working on a slave girl picture for my geekipedia bio.and am about 1/2 done (orion 1 is done now I just need a slave girl!).
Both Voyager and Enterprise were done with LightWave (as was Babylon-5 and Firefly).