Warcraft, Starcraft and now comes hokey craft.
Now with all of that said, I have been enjoying watch the differing units unfold and develop. This could possibly be a prelude to Command & Conquer 3. This genres needs to evolve and make things interesting. Have your actions mean something in the end and have changing results. If you don't complete yada yada, then you'll have to watch your back at every turn. Anything to upgrade the old stoaic go here do that bland work of the past decade.
Rise of Nations was fun, had interesting AI at times, and had the ability to keep you interested past the first set of missions. Legends on the other hand is closer to Starcraft with it's different races with the only thing missing being the Zerg. If you enjoy this type of gaming, then this may be all you need. But for more challenging quests and better scenery, stick with Age of Empires III.