"I also think that all console this year (2015) will sell more during February than in March, even if March have 5 week's VS 4 week's (at lest, February will have better week by week)"
Looks like i was right.
Another source for say that February is not only most importabnt than March, but even the most important month after November and December.
PS4
342,000 (only The Order) -----> 336,000 (Blood+Type0+Battlefield)
XBO
276,000 (NOthing) ------> 233,000 (Battlefield)
WiiU
96,000 (nothing) --------> 84,000 (Mario Party 10)
So, yeah... even if February have just 4 weeks... is one of the better month.