I know it's cliche' to talk about Bruce Lee, but he has a lot to teach.
In "Enter the Dragon", there are several good scenes where he is taking on more than one attacker. Look at his eyes. He is looking at the SPACE in front of him, not the individual attackers. This will train you to see your surroundings more than just the individual(s).
As far as one on one... when it comes to bokken work, I try to do the same. Feet, Hands, Hips, Chest, Weapon... all of it gives indications as to intent. My advice would be not to focus on any ONE thing and just be comfortable in yourself and your ability. Know how to get off line and what your action will be once you are there. Sounds simple but really... experience is the greatest teacher imho.
Good luck! Train hard!