I think I'd have to agree with Pengwin7 here.
Krejci did have a down year last year, so I do expect him to rebound. In a points only league, I would tend to go with the assists guy as assists are easier to get than goals.
The only thing that concerns me here is the possible (future) lack of ice time for Krejci. If Seguin moves to C and Bergeron holding down the #2 C, that doesn't leave much for Krejci at C. With that said, I still think I'd roll with him as the safer option.
Ultimate Dynasty League
16 Team Dynasty League H2H: G, A, P, PPP, SHP, +/-, PIM, SOG, W, L, GAA, SvPct, SHO
C: Stamkos, Getzlaf, Carter
LW: Ovechkin, Kovalchuk, Brown
RW: Iginla, Pavelski, Horton
D: Byfuglien, J.Johnson, Goligoski, Hedman, Hamonic
G: Schneider, Hiller,
B: E. Johnson, S.Kostitsyn, Neil, Biron, Giguere
Prospect: Nail Yakupov, Tangradi
UHL Dynasty St. Louis Blues
...a bad team trying to rebuild...