Finally finished my Trooper class story.
It's funny that it's taken this long, because when the game launched the first character I made was a Trooper named Corlis, but I stopped in Act 2 when the urge to play a Jedi came on strong. Since then I've completed both the Consular and Jedi Knight stories, during which I made yet another stab at the Trooper with a new character. Finally about a month back I decided to say screw it, deleted my level 34 Corlis and started anew, remaking Corlis exactly. This time I made it all the way.
Playing it, I was reminded why I stopped. Act 1 is good and interesting, but I felt like after that Bioware had no idea what they wanted to do with the character. You have one really high moment (possibly the best part of the Trooper story, honestly) in the final mission of Act 2, but that's about it. The end of Act 3 is kind of disappointing, and the final villain never really had time to make too much of an impression. It's a slightl better end than the Consular story, but it kind of feels incomplete.
So of the characters I have played, my order goes Consular > Knight > Trooper.
Now I get to focus on my Sith Warrior. Thus far, I'm ambivalent. Korriban was kind of meh for me, and Dromund Kass is pretty but I'm not a fan of how the missions are flowing in terms of placements. I also noticed that Korriban feels tiny compared to Tython and Dromund Kass appears smaller than Coruscant.