We're top 4 now

As wobbly as we've been who do you see being a real threat to a top 4 place?
Chelsea and City will be top 2 IMO, that leaves 2 spaces.
The obvious candidates, other than us, are Liverpool and Utd but both of those are looking rubbish too.
Southampton and West Ham won't last the distance (in a way it would be nice if they did, but I can't see it).