Just started replaying ME3 again and I'm reminded about how much I enjoyed the game before the ending. I tried several classes before I finally decided on the all-biotic one. Engineer is OK, but the drones and turret are just too stupid to be very useful IMO. I love how many powers you get with the biotic class. You can't do shit against shields, but I just bring EDI and Garus along for that.
Solving the Genophage and Quarian/Geth stuff is just so well done and is incredibly satisfying. This is the first game in the series where I don't want to do the REALLY renegade choices because of how f-ed up they are. It's probably because I've grown so attached to these issues over the last two games. I thought it would be funny to see the results of cheating on Ashley with Miranda in ME2, but it just made be sad when I made Miranda cry.

Ashely's swimsuit comment was hilarious, though. "I wear ARMOR into battle Shepard, not a swimsuit!"
It just makes me all the more sad at how much they dropped the ball with the Reaper storyline (you know, THE MAIN ONE). They just seemed COMPLETELY indestructible in this game unless you have the giant magic wand to do it. In ME1 wasn't the Normandy able to rip through Sovereign with a single shot? (or was that because you "killed" him when he possessed Saren?) You do kill the one on Tuchanka with the Giant Thresher Maw and another one with the help of an entire fleet, but those are the only 2 that you see get destroyed in a satisfying way.
Mass Effect was never some kind of intellectual Sci-Fi series and I really don't appreciate them trying to make it one with the trippy ending it had. ME1 wouldn't have been NEARLY as satisfying of an ending if the scene where Joker blasts Sovereign apart was done in slow motion with only soft piano music being played.
If we aren't past sharing self indulgent fan fiction, my perfect ending would have been
a perfect recreation of the end of Independence Day, only with Shepard as Will Smith and your crew members as Jeff Goldblum.
-Fly into the Reaper mothership (Catalyst, Citadel, whatever)
-Upload a virus that effects Reaper shields (they are synthetic so it makes more sense than space magic)
-Punch half-TIM, half-Harbinger off into Earth's atmosphere ("Welcome to erf")
-Fly out before everything explodes (or not depending on ship readiness)
-Reaper shields go down, fleet destroys them (depending on readiness)
Cut to award ceremony 1 year later.
-Dramatic music, Shepard and surviving crew getting medals/smoking cigars,
-little blue space kids/Racist Ashley baby/clone Miranda+Shep baby/half-turian, -half-human abomination/etc.
-License Star Wars New Hope end credit song or the Star Trek theme for credits
-Fake blooper reel: Messing up lines, cell phone call during Chat with Reaper, etc.
Would pay another $60 for this. MONEY IN THE BANK BIOWARE!