I am in the same boat but next year...I have called around and they suggested byuing a seat for infant (2-12) at 75% of the cost RT...I do not want an 18month old sitting on my lap for 18hrs flight...

I agree with this issue, since I have yet to see a kid sit still for more then 10 min at a stretch...

Now the issue is which airline has the best economy class product, but more than likely I will be flying on AA since the ORD-DEL is the least headache of changing terminals and so forth..