Bases at worp pints are very effective if you have the right types...
For example, an Ordinator class defense base is 50,000KT of pure fleet destructing power, armed with over 50 gauss cannons (ballistic weapon range8, multipler damage of 800 to range 8), 50 APB cannons and nearly 100 missile ports. Place two or three of these at a warp point along with two Deliverance class fighter bases (can launch 100 fighters per combat turn, can hold 1500 fighters), and a fleet of 500 dreadnaughts, and you warp point is pretty well defended.
Of course in order to do this you'll need resources like those found in the attached picture...
