This is a very tough one.
I'll go with
+2 Ariza
+2 Booker (would give him the 3 but Ariza had a similar 3 pt game, played great D, had the same assists and twice the rebounds with no turnovers...Booker has 3 to Ariza's none.
+.75 Ayton (defense needs work but assists impressive)
+.75 Warren (nice for 3s, steals and scoring...defense better too)
+.5 Jackson ( nice stuff late, though against their scrubs...still can't ignore it..stepping up)