Need help to Fill last D spot

[kwjk101]

Looking to decide on my last d spot for a 14 team roto keeper league.
Stats: G, A, +/-, PPP, SOG, HIT

I have Niskanen, I picked him in the last few rounds on a whim...

FA's are Quincey, Johnny Boychuk, Kuba, Coburn, Salo

Do I keep Niskanen or grab one of the others, if so... who?

Thanks