Niall did a good job during his rookie season and Dan + Shay are making quite the same record already. Their live team is Minivan friendly (assuming it is Karen, Madison and Tae) and I can see all of them in the Semis and not getting a wipeout before the finale.
Reba did a good job too but she had a finale lock on her team since the blinds already. Chance, not counting the Ray-Kala incident, actually did a decent job.