I think that one of, if not the best one is LADARVision 4000. That is the one that I had. First of all, most of the newer lasers have tracking in them now so they can track the movement of the eye. The LADARVision 4000 tracks at 4000 beats per second I think. So, even if your eye is all over the room, the laser will track it so you won't have any miss-hits. It is by Alcon. It is about the middle of the road in cost. Mine was $1,599.00 per eye and my insurance paid for $600 of my cost.
I learned a lot about all the lasers before my surgery by just googling lasik, lasers, anything I could think of. The internet is amazing for info on this procedure. And, it helped my doctor that I knew so much once I got in there.
Good luck on your decision. I would do it. Your wife will love you so much for it. I couldn't be happier. It is honestly the best thing I have ever done for myself.