I think the Champion is nice. The lack of a mobility system means its not chasing anything down, but 60 is enough to move with the battle line (or, for smaller fleets, anchor it). There are two configurations I found worked well, though I'm sure there are many others: Anti-Small Ship and Brawler.
Anti-Small-Ship uses a Locust, Tachyon Lance, and 2 HVD. Small mounts to taste, but I actually put on 2 IR pulses in addition to light PD for anti-fighter and close in DPS, and they saw decent use. This build is a good sniper one in general (and a good candidate for ranged specialization), and a high energy focus boosted Tachyon burst is capable of popping many frigates in one shot. Locust clears out fighters and frigates and overwhelms the PD of larger ships. Swapping out the Locust for an hMIRV would make this a generalist sniper.
Brawler uses Hammer Barrage, 2 Heavy Needlers, and a Plasma Cannon. OP are tight, but with built ins it can have everything. While this ship's range is low, its DPS is extreme. 500 kinetic, 750+HEF large shot energy, and ~1600 he dps (ammo limited). This build has trouble dealing with kiters: particularly 1000+ range destroyers and frigates. But anything that gets close to it gets chewed up, making it an excellent line holder, and Remnants always charge.