I prefer dynamo lights, but for use on the 2 bikes that don't have dynamos and as backup for the bikes with dynamos I have a B&M Ixon Premium front and Cateye LD1100 rear.
Cateye LD1100 has the advantage of being seen side on (2 LEDS facing left, 2 right, and 6 facing back). For this reason I use it most of the time, even on the dynamo-equipped bikes. It can be set to fixed, flashing or a combination of both.
Ixon Premium is similar to the B&M Cyo dynamo lights. I use it quite a lot off the bike as a general purpose torch. I like the use of 4 AA size accus - cheap to get spares, same size as for the Cateye LD1100. There is an optional charger which is very compact, which could be useful for touring.