Okay I know you asked for guidance on what lights, but first a commentary on what has become important to me. Other than being bright enough, I value having USB rechargeable as well as decent run-times. I am switching over all my lights to USB rechargeable so I can charge them while I am at work. I hate having to buy batteries, or have a dedicated battery charger available. For me, the charger would be at home when I realize my batteries are low, so being able to charge off the wall or computer at work is a big help. On a similar note, I look for lights that have a low battery indicator. Cygolights have been mentioned by others, and I use their taillights and love the fact that it has a low power indicator. Not sure how long of a commute you have, but if you buy more light than you need, you can run at a lower setting and thus get longer run-times between charges.

For me, up front I have Light and Motion 700 which is for now my main light. I have an ancient Planet bike Alias as my secondary front light. The Alias will soon be replaced with a Raveman PR1200.
For tail lights, I have two Cygolights, the Hotshot 50 as well as the Hotrod. My third light is a Planet Bike Superflash, but will be replacing the Superflash with another Hotshot. Finally, have more than one light up front and in the back. If one light fails, you have a second going. This is especially important with taillights as you can't see if the light has turned off.