[BH Mercenary or IA Operative]

I have a 50 Sniper (the other IA Advanced Class) and the story is defiantly the best, and many agree. As for Merc healing you should be careful, I've seen LFG messages in chat specifically requesting "No Mercs" since the nerf. I had a Merc healer in my group running a flashpoint and the green FlyText numbers were just not as much Sorc or Op healers. Personally I'd pick Operative.

[Roll back DPS Mercenary 1.2 changes]

This makes me glad they didn't mess with my sniper, I feel a little improved actually. Until yesterday I didn't know there was a medal for dealing 5k in single blow. I usually hit 2-3k per ability (channelled and burst). The first AoE snipers get is useless apart from interrupting PvP, but Orbital Strike has a HUGE radius, and deals about 1.1k every hit (used to deal 8-900). It hits 3 times, but two items in a set of PvP gear bumps it up to 4. Moral of this story? Roll a Sniper, the story is fantastic too ^.^

[Datacron difficulty]

I think the guys at Achievement Hunter have some pretty good guides on youtube of quite a few Imperial side datacrons. They did seem quite difficult when I was watching them.

[[Guide] Companion Crew Skill Bonuses -- Picking the Best Crew Skills for your Class]

I was so stumped on this, thank you very much.

[StarWars Games - What do you else play ?]

I really liked Republic Commando even though it was quite short. Force Unleashed 1 and 2 were okay. Loved KotOR and Battlefront 2. I love all the stuff that made it into TOR from KotOR like Satele Shan being Bastila's descendant, Darth Revan, Rakgouls and of course Taris.