Are the servers that show 'FULL' really full, or have they set their population limits reduced to ensure an even spread across all servers.
There just doesn't seem any good reason for them to be full. After all, given that this is a pre-order period, there can't be any excuse that BW/EA were not expecting that number of people.
If they have been set low artificially then I feel sorry for the people waiting in line now, trying to get onto their server for a fairly arbitary reason, as by now any players let in today should have chosen their server already.