When all is said and done, the important part is to get as much RF energy to the antenna feed point as possible. Every termination, every length of coax creates a one or two db loss in what gets to the antenna. Lengths can be important but anything over half the wavelength of the operating frequency is good and only helps keeping wavelength segments up to 5 WL long. SWR is most important as is robs directly from the ERP and results in distortion and harmonic generation.