Mass Effect 2 Collectors Legion Paragon Renegade
Spoilers to follow. Liek whoa.
Mordin's Loyalty Mission
Legion's Loyalty Mission
Again, none of these things were a deal breaker, in fact for the most part I far preferred Mass Effect 2 to Mass Effect 1. However in ME1 I never felt this huge problem with the binary choice system. The problem with the weightier choices of ME2 is that they don't lend themselves to the binary choice structure that's been built up this entire time.