If you wish to play the absolute most fun ship in Star Trek Online, choosing an escort ship is probably a very good idea. Escort ships are very different from both science and cruiser ships for numerous reasons. First and foremost, escort ships are the littlest but also the fastest ships available, meaning you'll easily outmaneuver your opponent, come at their rear side by which case they will be unable to target you with torpedoes. Being fast and maneuverable, in addition to much smaller is a good feature and you ought not forget it.
Escort starships in STO furthermore have the absolute most advanced and strongest firepower. Their phazors are extremely powerful, and escort vessels are the only real ones who can equip cannons, the strongest weapons available to all vessel. Escort vessel is a remarkably powerful starship with unusual blasting power for his or her size. There is also one extra forward weapon slot which also greatly assist in space battles. http://www.escortslondoncity.co.uk/
You can find however also a few disadvantages to having an escort star ship. Their medical, science and engineering abilities are greatly lower than the ones on cruisers and science ships. You won't manage to repair your ship as fast as others, sending and fighting against boarding parties is much less easy, detecting cloaked vessels not possible, and using science skills is much less effective. But despite these cons, I still think escort ships are higher than a match for some other ship and with a little skills and know-how you shouldn't have problems defeating any adversary regardless of these ship class or bridge officers.
In general, escort ships in Star Trek Online are most definitely fun to play and despite a few negative aspects you will quickly learn why choosing one was not a mistake.