We have been early December several times, and it was busy with moderate crowds but doable. We even went during Jersey week which was crowded but okay. Never been during Pop Warner week, try to avoid it like the plague
We went for the first time in February this year. We were there from the 6th to the 16, so don't know if that qualifies for the first of Feb?
We found the weather to be great (70's), and the crowds to be pretty low. Of course, MK, is always busy, but very doable. We only saw 2 BTG's and they did not cause problems at all. There were some cheer groups but they only slowed the lines down if you got in behind them.
Personally, we loved February. We know we got lucky on the weather though.
We also did our homework and avoided MLK day, the half marathon, and President's day due to the expected high crowds.
We love both times of the year, but found it refreshing Not to have decorations up.