But yet you're quick to say Samantha is meaningless outside of her romance. What squadmate can say they found a distress call from Grissom? What squadmate can say they found some Cerberus scientists? You have played the game.
1. I didn't say it, I interpreted something someone else said (that she is totally meaningless). I also gave my own Opinion further up.
2. Okay, I will waste our Time.
Squadmate Love Interests in ME3 are Ashley, Kaidan, Liara, Tali and Garrus, if I'm correct.
Ashley and Kaidan get you off Earth, accompany you throughout Mars, are injured there can be visisted several Times in the Hospital, are made the second human Spectre, can be killed during the Cerberus Raid protecting Udina, can be recruited. They are arguably tied with Tali as being the least involved of the one's I listed.
Liara meets you on Mars (is it her personally that discovered the Crucible? I can't remember), supplies you with Information throughout the whole Game as the Shadow Broker, interacts extensively with Javik, is even mandatory during the whole Thessia Disaster, creates the Beacon etc.
Tali is met late in the Game, but she is an Admiral of the Quarian Fleet, your most staunch Supporter throughout the whole Rannoch Arc, is mandatory to be taken on the Geth Dreadnaught, and she even has a potential Relationship with Garrus. She is tied with the Virmrie Survivor to be the least involved of the one's I listed.
Garrus is met on Palaven's Moon as the turian Advisor against Reapers, he has several exclusive Moments with Shepard throughout the game and is perhaps the Companion that interacts most with all the others, especially Tali, whom he can enter a Relationship with.
Furthermore, everyone of them can not only be talked with on the Normandy extensively, but also regularly met on the Citadel Hub for additional Conversations.
Please tell me you don't believe, Samantha is actually equally involved in the Game than they are. Because that would just be belligerent Bullshyte.