I agree with most of your picks...
I tagged on a few more   

best laugh----Elijah
best smile---Mac
better actor----Elijah
better range---Mac
more longevity---Elijah
best eyes---Elijah
funniest---Mac
most expressive---Mac
best dead-pan----Mac
best voice---Mac
best hair---Mac
best crier---Elijah
best personality---Mac
best teeth...Mac
cutest...Mac
most rhythmic body movements---Mac
most athletic---Elijah
best risk taker---Mac

This is funny. I don't know if I can dissect actors like that.

One thing, thoug: I'd argue that Mac has more longevity than Elijah Wood. Just because he did Lord of the Rings doesn't mean he's going to have a great acting career. Most people agree that he sucked big time in that movie. He basically didn't act, but just kind of mechanically moved through the role, speaking his line with zero emotion or any kind of expression. Compare that to the wonderful performances he gave in films like Paradise, The Good Son and The War, and you wonder what the hell happened to his talent.

Macauley Culkin may not be nearly as popular as he used to be, but his talent seems to have grown rather than faded away. He has been receiving critical acclaim for his roles in theatre productions and in the film Saved. He's not concerned with just making movies to stay popular, so it may be a while before we see him in another movie. But my guess is that when he finds the right projects, he'll continue to give good performances in small good indie films. And since he doesn't really need the money, I think that's a very sensible thing to do.

I've seen Mac in several interviews, some of them when he was a kid and I found his personality to be more engaging than Elijah's. I also think personality comes through quite strongly in acting... particularly comedy.  As much as I liked Elijah as a boy actor, I can't imagine him having the personality to carry a film like Home Alone.