Board Thread:Questions and Answers/@comment-76.84.113.246-20130314081426/@comment-4647769-20130319125752

For some reason, I like the unit of damage-squares per second. Plants output (DPS * range) DSPS total, and Zombies absorb a total of (their speed * their health) DSPS total.

Then again, the fact that most plants' projectiles get stopped by zombies messes the DSPS output of plants.