I prefer the smoots drive from the old Marvel series Open Space. (Something similar is used in the Flandry universe). It's a teleport drive, but only one smoot at a time - the distance across of a hydrogen atom. To generate apparent FTL speed, you just make a lot of jumps very, very fast - make your drive fast enough and your ship seems to be moving through space faster than light, in normal space but with no acceleration or velocity. Space to space combat is impossible in Open Space - the outmatched ship(s) just turn away and they're instantly half a light year from you.