No-one knows what intelligence is. If we did, some smart person would have done it by now.
We are not really making much progress towards answering what consciousness is.
This could be because there simply are not the words to define what we are talking about.
After all and with many apologies to Neitzsche 'Whereof one cannot speak, thereof one must stay codeless'
The best promise / progress I have seen is the brute-force reverse engineering of some brain functions. You do not need to analyse or understand, just copy.
This includes PET scanning of humans in a vegetative state, Seeing what a cat sees through the implantation of electrodes.
I think I read some researcher is just about able to simulate an ant brain with reasonable fidelity.
Simulating a human brain or equivalent will also imply the ability to receive / simulate and process all the inputs and outputs to and from the brain - i.e. you need the body. This is a big job.
Before we get too eager or depressed, remember that people were making experiments on birds - trying to reverse engineer them - for some hundreds of years (Da Vinchi) before we managed to make powered flight work.
One problem for the AI people is that once they solve a problem to any extent, it is not AI anymore!
- remember context sensitive help and text recognition used to be part of AI.