Point Def. too tough against missiles-change it.

[Suicide Junkie]

What I think we should do is take the seekers, take the PD, and compare them to beams & shields+regenerators.

Perhaps, One PDC should be very roughly equal to enough regenerators to recharge the shields in 3 turns from the missile damage.
The missiles' damage should be set to get a damage factor of about 1.0 (average), since they have long range & 100% accuracy, but can be stopped by PDC/shields)

given a missle damage of about 120, we need a regeneration of about 40 pts/turn. With regenerators, you need 2 SRIVs so the PDCs would be 2x the size they are now.
given a missile damage of about 120, and a shield with 360 (rounded) hitpoints, you need 1/3rd of a shield to block 1 missile, making the PDC a one-shot deal @ 13kt

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Ok, clearly doubling the size of PDCs to match them up to regenerators & shielding is not ideal. Since they only protect against missiles, and not beams, they should be reduced in size compared to regeneration.
Thus, we end up with PDC like they are now.

Answer: use strategic genious to outwit the enemy.
Ie. If the enemy has no PD, use missiles. If the enemy loads up on PD, then he skimped on weapons and/or defences, so rip 'em a new one with beams.
With a mixed fleet, tell beam ships to attack PD ships, and missile ships to attack beam ships.
With mixed ships, going extreme either way can get you the win.