Choosing the perfect couch!

This topic has been hot on my mind lately because our living room is so desperate for more seating and a rug/sofa makeover. We've been using our IKEA sofa with Comfort Works slipcover for a couple years now and we love it, but I'm ready for a color change and we have a funky layout but still need more places for people to sit! (But don't we all have a funky living room layout in some way?)

Point is, which sofa to buy is an important choice and a lot of research does (should!!) go into it.

We're...