Bridge Commander was alright.....but Klingon Academy was better...at least in the gameplay department. Had a little more depth, but more than that was the ability to really use the spatial terrain.
I friggin LOVED fighting over a gas giant, and having the ability to fly into it, risking damage to my own ship in the hopes of the enemy taking more. Or fighting in the acretion disk of a black hole and trying to maneuver my enemy into crossing that point of no return.
And the interior graphics (when someone blew a hole into your ship and you could see interior decks aflame) was oddly superior in the older game. Plus watching chunks of your ship come off, like a nacelle, added to the over all experience.
KA also seemed a more detailed ship sim, as opposed to BC, which was trying to appease the non-gamer Trek fan by allowing them to issue a few commands and just watch the game do it for you.
BC's biggest asset was it's graphic's superiority...And like to many Trek games, it was pretty much about the combat....even the "peaceful" missions had alot of combat to it. In the end, aside from some variance in camera angles and grahics quality, it's pretty much like STO.