Going to disagree slightly here: In terms of space combat, it realistically most likely would be one of two options, A: Super close slug fests or B: Just a bunch of ships flinging a bunch of long range guided missiles at each-other until one or the other's anti-missile batteries run out of ammo.
The main problem inherently IS the distances involved, and more importantly, the fact that hitting something with a "ballistic projectile" at proper "outer space range" long distances is going to be super hard since range of motion is significantly greater in space. If you are too far away, your target is likely to literally side step your shot before it reaches them. The idea that super capital ships are going to stand off thousands of miles apart and shoot each other with direct fire weaponry is kind of absurd when you consider that.
The idea that there would actually be "dogfights" in space between jet-fighter like craft is silly, because manoeuvrability in space (where there is no need to maintain lift, or worry about aerodynamics or any number of a host of issues that actual atmospheric fighters need to consider) is completely different than manoeuvrability in atmosphere. The worlds best human pilots can barely handle certain high intensity manoeuvres in current aircraft. An actual Space fighter would be capable of manoeuvres that make anything an atmospheric craft can do look like child's play.