I kind of miss the old system too. However I understand why they changed it. Oftentimes would vote down (an opinion) simply because they diagreed with it. Examples like: Do (you) think couples should live together before getting married? There is no right or wrong answer to a person's (opinion).
However depending on if the reader liked/disliked or (agreed) with you or not they would vote it up or down NOT based upon the quality/points of the answer. I believe the person who asks the question still however has the option to (select) which answer is "best". I also believe people still have the option to click on the (thumbs up/down) buttons which be highlighted.