Sitting Pretty FLF
If you are looking for "low prim" value it is going to be difficult to beat this couch set from Dysfunctionality. 2 and 4 land impact, these items have impressively long LODs and should work for everyone. There are tons of animations both singles and couples and an AO kit if you want to add your own textures.
Important to note (for me anyway) you must SIT to get the texture change menu :D. There are tons of choices including prints and darks.