crows are smart, interesting and intelligent.
This one story I've heard of is amazing:
A feeding dish was placed under a cage and the crow beside should try to get the food from the dish. After some seconds of consideration the crow took a thin metal stick, put it into the grill of the cage, walked around so that the stick bent and the crow could use it as a hook to lift the cage up and got its food.
Eagles are big and brutal and so on, but kinda boring.
Crows surprise you, entertain you and are really funny-ever seen a crow that flew on a trash can and threw out all that garpage out of it to get some food? It's hilarious to view.
Furthermore: what if you want your remote control and are to lazy to get up? an eagle would break it right away, a good crow would deliver it to you in one piece and working.
But sadly crows are really feral and I doubt you can control them.