From people who've been watching these two guys play, can someone give me a brief summary of what makes each D man unique, and which guy I can count on to be the better fantasy player moving on? League is in sig.

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16 team H2H (We keep everyone)
Positions - 2C, 2LW, 2RW, 4D, 2G, 1Util, 11 Bench, No Farm (We just keep prospects on the bench)

Scoring Cats
G ,A, +/-, PIM, PPP, SOG, Hits
Wins, Saves, SV%, GAA, SO

Year 1 = 2/16
Year 2 = 13/16
Last year = 4/16

C-Crosby, Lecavalier, Ott (LW), Schwartz, Matthias, Toffoli, Leino (LW)
L-Michalek (RW), Pacrioretty, Hagelin
R- Gallagher, Neil, Read,
D- Markov, Rielly, Wisniewski, Hamilton, Fraser, Dumba, Beauchemin, Trouba, Barrie
G-Fleury, Bryzgalov, Ward, S.Mason, Enroth,