Agreed, this is an instant turn-off for me when I realize this in e.g. an RTS game. Red Alert or C&C come to mind on higher difficulty, can't remember which.
OpenRA's bots are a bit more clever, and also don't need to magically see into fog-of-war.
Skirmish was a blast- I'd turtle until I had the enormous battleships (cruisers?) that could fire onto land. Loads of fun when I was like 12.
The AI on higher difficulty starts a few centuries more technologically advanced than you, and gets multipliers on the starting resources like cities.
It’s not particularly fun to compete against.