Aviva

This is the one we would put in a rental, a kids' bedroom or a hallway, and we would say so plainly rather than steering you up the range. At 30oz it is not a plush carpet — you will feel the difference against the 52oz Callista the moment you stand on both, so try them side by side before deciding the cheaper one is fine. What you do get is the same solution dyed fibre as the expensive ranges, which means the same resistance to fading and to hard cleaning. For a floor that has to survive rather than impress, that is the spec that actually matters.