My vote:
The difference between intelligence and consciousness is like the difference between "can" and "should". An intelligent individual accurately considers, "Can it be done?". A conscious soul instead considers, "Should it be done?"
"Can it be done?" is a simple matter of fact. in the same way, "intelligence" is a matter of fact.
"Should it be done?" is much more complex. Answering accurately requires awareness of the consequences on others and oneself. In the same way, "consciousness" is a confluence of self awareness and connection with others beyond oneself.
I hope this helps,