Statistically, there's not a whole lot of difference between NJ and Carolina.
GF/GP: 3.33 NJ, 3.08 CAR
GA/GP: 2.56 NJ, 2.50 CAR
5v5 xGF/60: 3.21 NJ (1st ranked), 3.08 CAR (2nd ranked)
5v5 xGA/60: 2.26 NJ (3rd ranked), 2.13 CAR (1st ranked)
5v5 xGF%: 58.72 NJ (2nd ranked), 59.16 CAR (1st ranked)
5v5 SH%: 8.32 NJ (16th ranked), 7.68 CAR (26th ranked)
5v5 SV%: 91.81 NJ (14th ranked), 92.67% (7th ranked)
SF/GP: 34.9 NJ, 34.9 CAR
SA/GP: 26.6 NJ, 26.2 CAR
PP: 19.6% NJ (23rd ranked), 19.2% CAR (25th ranked)
PK: 82.8% NJ (5th ranked), 81.6% CAR (9th ranked)
Points %: .667 NJ (5th ranked), .750 CAR (2nd ranked)
RW: 20 NJ (2nd ranked), 18 CAR (5th ranked)
ROW: 23 NJ (2nd ranked), 22 CAR (3rd ranked)
FOW%: 51.6% NJ (10th ranked), 52.6% CAR (8th ranked)
HITS: 594 NJ (31st ranked), 662 CAR (28th ranked)
PIM/GP: 9:06 NJ (16th ranked), 7:53 CAR (5th ranked)
Minor PEN: 123 NJ, 133 CAR
Granted, Carolina has been playing better than this recently and NJ hasn't been as good recently but those ebbs and flows are expected in a season and the sample size is large enough now to say these teams are pretty even IMO.
NJ has a slight edge in offense, Carolina has a slight edge in net. Other than that, not a lot of difference.