Unpopular opinions

I'd quite like to see the way that the Rannoch arc goes in ME3 without Tali present, but the only way I'd be prepared to do it would be to avoid recruiting her in ME2, perhaps headcanoning that Shepard simply never received the dossier or somesuch contrivance. I can't see myself allowing her to die in the SM, and I'd never betray her in her loyalty mission.

Aye, but it does still mean betraying her. From a role-playing perspective, that's not a direction that I'd take.

I don't hate Allers either. I thought she was a bad character, but I didn't dislike her. Her email with the extended cut helped a bit.

My problem with Allers was that I don't think it made any sense for her to be on the Normandy, she's a journalist not a soldier. I think I started playing Mass Effect too late to really develop an issue with her though.

Another opinion that I'm not sure if it is unpopular or not is that I don't like Shepard. I like the companions, the aliens and the general lore (despite the many inconsistencies) but I'm not fond of Shepard. I think I just couldn't relate to her stoic soldier/hero thing.

I never understood why they said Hale's performance was better. I think because she is more well known, but her performance always fell flat. She just sounded vaguely pissed off the whole time. 

It worked when she was pissed. Otherwise, it didn't. 

To me, Meer took more time to grow into the role. ME1 I like Hale's performance better, ME2 and 3 they're evenly matched. I guess my UO is that I don't prefer either one over the other.

Another UO: I hate the Citadel. I don't know if its over exposure or what after having played the game so many times but I hate it. It's time consuming in 1, it's an eyesore in 2, and in 3...you know in 3 it's okay, although it's a bit jarring compared to the rest of the game. I know other people cherish hubs, but I could honestly take them or leave them. (I say this, and I will never not be irritated that Val Royeaux in DAI was like one tiny town center with a few extras.)

I think she did an excellent job in ME1, and Meer a bad one. I can't tell exactly why, but her VA seems to be alive, while Meer's is just too robotic. Meer got better in the sequels and Hale slightly worse--but I think that's not because of her, but because of the directors who I imagine pushed her to sound more emotional.

But I guess the more engaged the voice acting of someone is, the more it goes in a specific direction, one that players may not like or identify with. Meer's job that I find too "robotic" is more neutral in that regard.

General opinions
- I prefer playing renegade, at least to an extent, and believe it adds realism
- I purposely lose characters or not use persuasion at times to enrich the story
- Hackett is a manipulate POS who uses and discards Shepard, and isn't his/her friend; especially one with the ruthless background
- I didn't have any real issues with Udina, despite how much Bioware pushes you to, until his coup in ME3

ME1
- I have no problem shooting Wrex, don't like him, feel his character is inconsistent throughout the trilogy, and he's a murderer (ex: his pirate story when he first met Saren)

ME2
- I don't like Grunt and think his introduction is cheesy
- I don't like Thane and feel he's a hypocrite
- I find Miranda to be boring; constantly talking about her father
- Revealing the truth about Tali's father is the morally right thing to do and shouldn't be considered a renegade move

ME3
- I prefer the genophage arc with Wreav
- I have no difficulty shooting Mordin, believe he forced Shepard's hand, was intent on dying anyway, and feel it's one of the best non-romance cutscenes in the series
- I believe the geth are a timebomb for disaster (more than they already are) like the catalyst suggests
- I liked ME3's ending and found the reapers' motivations to be brilliant storytelling

Here's one...

I can't stand Joker. At all. He is the most obnoxious character in ME, and that's saying something.

I didn't understand the point in killing hundreds of mercs to help your crew in ME2. The worst example was mowing down mercs just to tell Garrus not to shoot Sidonis. Yeah, the mercs are cannon fodder, but... This may be why I liked Samara's loyalty mission.

His loyalty mission. Most of the loyalty (and recruitment, actually) missions required killing a bunch of nameless mercs. Or, in Jacob's loyalty mission, killing people suffering brain decay :/

It's all there for gameplay. I realize that it sounds silly to criticize shooting people in a shooter. I loved the characters and their core stories in their arcs, but all the shooting random cannon fodder mercs was just unnecessary padding imo.