2nd best? I'll say its the best purchasable console. Be sure to put 9 points in Flow Capacitors to get the full +20 power to each subsystem when in combat. That's a total of +80 power, makes a huge difference to how your ship performs.
As for ship set, the current "best" that maximizes damage potential and has good defenses for your ship is not a set:
Counter-Command Deflector Array Mk XII
This is a no brainer. No other deflector increases weapon damage, exotic (sci) damage, hull hitpoints AND shield hitpoints.
Romulan Advanced Prototype Impulse Engines Mk XII
Get this primarily for the boost in performance of your attack patterns, which means even better damage and defences (for the few attack patterns that also boost defences).
Elite Fleet Warp Core Mk XII with [AMP] and [*->W]
[AMP] is the key. With Plasmonic Leech adding +20 power, it is easy to get all 4 subsystems to the minimum 75 power needed to fully activate [AMP], increasing your damage by 13.2%.
Elite Fleet Adaptive Resilient Shield Array Mk XII with [Res*] and [Adapt]
This shield was not obviously better to me as it had lesser shield points that many other shields. But someone explained to me that [Adapt] gives the most (+20%) shield damage resistance to every weapon energy type, and an additional +15% to 3 energy types. Typically I go with [ResB] for additional resistance to Disruptor, Plasma and Antiproton as they are the most damaging energy types.
