Wait.... I didn't play the first one.... not really a trilogy...
But anyway, I've finally finished Mass Effect 2 and have gotten quite a good ending!
The Collectors were stopped and I've decided to keep their base..... You never know what could happen
Every member of the crew was rescued and returned to the Normandy.
Every squad member survived the Collector Base mission and I got the 'No One Left Behind' achievement.
My favorite turian finally loves me! I have to admit, the Garrus romance is probably my favorite out of all the other options you had. At one point I considered Thane, Jacob or Kelly but nah, Garrus is the one for me.
So now it's on to Mass Effect 3 to continue my adventures! Wish me luck!