As for the Mass Effect Trilogy in my short review (spoilers included):
While I enjoyed all three Mass Effect games, the gameplay of ME2 was shorter than the medium playthrough of ME1. The ME3 gameplay with DLC was much longer than ME1/ME2 combined but at least ME3 did not require any manual hacking skills. ME1 was the only ME game with unlimited ammo and with little auto health regeneration.
In what was supposed to be the best game series for the Unreal Engine 3 turned out to be a sad ending in ME3. The main character made a heroic sacrifice in 3 of the 4 choice endings. Only the "destroy" ending led to the somewhat survival of the main character. It was a poorly executed "Deus Ex" style ending by Bioware. No wonder why the ending(s) was so criticized and flawed in so many ways.
The character should choose depending on his/her reputation (and having a large army size) throughout the game. There shouldn't be an AI Catalyst dialogue at all. Instead someone else (like EDI) should tell the main character to choose. The walkthrough was slow and tedious and even dialogue(s) can't be bypassed through with the spacebar.
But I bet Bioware took a page out of Deus Ex Human Revolution and add in more cutscenes in each of the four choice endings from the extended cut DLC. Even there was a YouTube clip called "How Mass Effect 3 Should Have Ended". Since the Mass Effect Trilogy does support mods, even different mod ending versions of ME3 including the "ME3 Happy Ending Mod" were released.
The ME3 ending was not what players wanted and I hope Bioware learned from those mistakes. If there's going to be a real ME4 as the sequel, that's up to Bioware to decide.