DICLAIMER: Demigod made me try dota, not the other way round.

In demigod early game the creeps are just XP and gold on legs, they pose no threat or challenge to anyone. If you destroy his entire creep without losing one unit yourself the enemy wouldnt be worried, they'd just do the same thing with ease.

However when it gets to the mid-lategame with the right upgrades the catapalsauri can knock off 10-20% of your HP in one hit easily enough, a group of angels will take you out if you are caught in the open. Giants dont pose much of a threat though, less than the dinos/angels at least.

In dota creeps start out relatively strong and positioning them/farming them is an important skill, however as the game progresses they rapidly become XP on legs, with midrange items and at midlevels a creep wave can be soloed with little harm to the hero.

What im saying is the relative strength of creeps over time is inverted between the two games, demigod creeps start weak and get stronger, in dota they start out strong and get weak (unless production buildings are destroyed in which case, mega creeps u gotta watch out for, only seen them in one game b4 though )

I guess you have worked out that the [Suggestion] part of this topic is where i say that i would prefer the creeps to start out strong and get weaker relative to the demigod over time [NOTE: i dont mean that this should apply to generals minions, although it would be interesting having generals powerful early game kinda like int heroes and diminishing compared to the rising str/agi heroes (assassins)]

NOT MAIN POINT, JUST GOT TYPING AND CARRIED ON

Some reward for last hitting creeps, maybe 75% of the current gold given for being in range when they die and 125% of the current gold for last hitting... Although it was just an engine limitation in dota, it made for an interesting game mechanic in the same way which many engine bugs do. (strafe jumping in quake anyone?)

tl;dr

-creeps should start out strong relative to demigods and get weaker as the game progresses (well they get stronger, just not as fast as demigods do) to move the focus onto demigods rather than scripted creeps. Helps to create a feeling of ascending above everything else, just like the theme/fluff of the game.

-Gold or xp or some kind of bonus for last hitting creeps, not game changing, just a reward that gives you an edge for doing it over those who don't.