When I used hair removal creams they didn't seem to give a much longer lasting effect than shaving. Although, I have never used it on my head, just on body hair. You also have to leave them on for longer if you have course hairs.
I think the only thing this would save you is the agony of shaving your whole head vs just leaving on the cream and wiping it off after it's done.
I think a cream would be your best bet.