Footwear for a Soldier....?

I'm shipping of May 16th, 2011. I've basically got three months to prepare, I'm in good shape and have a PT score around ~275. I will be an 11x with option 4 (sadly not 40). I plan on taking up rucking every sunday until I ship to toughen my feet up. I was wondering what are the most common brand or model of boots used by Infantrymen. Thank You