Personally i run my Paragon naked-ass. Two plasmas up front, 2 high intensity lasers on the front turrets to deal with frigates mostly, but on the last autofireslot, lowest priority, a single Burst Laser up front for defences vs missles and two Dual Flaks for anything else on the sides. I then armor this baby up with an almost full complement of vents and caps and max out flux regen and shield mods.
What comes out of it?
I can solo a fleet of an Elite Paragon, two Oddyses, one Aurora plus the standard complement of Tempests and fighters. Onslaughts? Hah, aslong as i'm not cought in a crossfire from BC/Heavy destroyers aswell as the Onslaught at the exact same time, i can totally solo my way out.
I also rammed some Aux Thrusters there, but i still 'swipe away' enemy ships before my plasmas touch on them sometimes, and just rely on the AI slipping up and coming into the crosshairs.