Hevach, thank you for your numbers! I'll take your testing model and give it a try when I get home - I'll get some Mk1 phaser arrays and just test against various opponents. I'm curious as to what, if any, difference exists between the power granted by skills, by abilities, by equipment, and by batteries. I shall have to play around a bit, I think!
Also, thank you to all who are participating in this discussion - it seems that I'm not the only one who was confused, and that makes me feel a little less terrible now.