As a seating group, I’m not much of a fan of the sofa + loveseat combination. If you ask me, it screams “furniture store layout.”
I do, however, LOVE when identical sofas face each other in a room. The arrangement makes for a cozy conversation area and creates a hub or focus for a room. Oftentimes, it's the perfect solution for a symmetrical space, especially in front of a fireplace. And they can really help direct your eye and make a strong visual statement.
The first sofas I ever bought as a grown-up were identical and I arranged them so they'd face each other. I paid $200 a piece for them at a warehouse sale and reupholstered each in linen. And even though their structure wasn't all that great, they served as a good neutral base for all the living rooms of the many houses I've lived in over the course of 25 years.
That arrangement still hasn't lost its appeal. And I know those below will remain timeless as well...