I agree with your first 3 choices for sure.
Personally I would go with Staal as your 4th, the canes are set up for a pretty good offensive year.
The devils are on the decline, and I think there is going to be too much drama going on with Kovalchuk, he doesn't even want to play in the nhl.
Backstrom has too many questions with his health, although if he is healthy not keeping him could really backfire.
and Pacorietty isn't worth a keeper spot in your format.
[CENTER]12 team, 20 player roster, Daily Roster changes, H2H Keeper(keep 2 fwd 1 D and 1 Goalie)
Start: 2C - 2RW - 2LW - 4D - 3Util - 2G
C: Toews, Backstrom,
LW: Neal, Lucic, E Kane, B Ryan, Steen (C/LW)
RW: Burrows, Oshie, Parenteau, D Brown, J Williams
D: Keith, Myers, Ehrhoff, Hedman
G: Ward, Lehtonen, Reimer, Scrivens