Excellent: Odyssey
The battlecruisers are definitely the most fun ships to fly I find, as they have the power to make something regret its position on the battlefield and have the speed to punish something for being in a poor location. Meanwhile the onslaught doesn’t have the maneuverability to pull that off and the paragon is for fighting around, not in, at least for my opinion of fun. What places the odyssey above the conquest for me is the built in hangar and the plasma burn over the maneuvering thrusters. The conquest drives full speed at you before turning broadside on, the odyssey pulls alongside and broadsides you. Makes the odyssey more fun to pilot. Also 2 plasma cannons are just fun to use.
Enjoyable: Falcon(s).
The standard falcon is just a good alrounder and is never something I’ll sneeze at. The falcon P is of course an excellent munitions platform and I’d actually rate it better than the gryphon, namely as it has the speed to rush forward and strike with those missiles and then get the heck out of dodge before something with more sustained firepower can retaliate.
The Falcon XIV is however my favorite, mainly down to the paint scheme. It’s the best of the XIVs personally. Also the improved flux stats make it a pretty good kite, if given ion beams and HVDs, placing enemies in a situation of “drop shields and suffer mass system outages, or don’t drop shields and suffer mass system outages later on and high flux”. The loss of speed doesn’t really hurt a falcon with that sort of kite build, namely as it’s still fast enough to fall back into the safety of the fleet if it needs to, while it can push other ships over the edge.
(Honorable mention goes to the collossus Mk3, for being such fun to shoot, but also a good early/mid game carrier, colony establishment transport and raiding vessel, all in one.)
Disappointing: hard to say. I want to say the capital civilian converts, the atlas mk2 and Prometheus mk2. While the cruiser civilians converts, the colossuses, are fun to fight and do have some use (particularly the mk3), these two ships aren’t particularly fun to fight, but neither are they a challenge. I also don’t find a use for them on the battlefield, if I’m bringing a capital ship to the field, it’s either to be the fleet anchor (battleship/battlecarrier) or to provide decisive firepower where needed (battlecruiser). These do neither really and serve more as fire support, which is not what I’m going to bring a capital for if I’m putting one in my fleet.