Its a snake order draft, so the first round order will be reversed for the 2nd round and so forth. If you have the #1 pick in Round One, you will have the last pick in round 2. If you have the last pick in round one you will have the first pick in round two.
For head to head, you are matched up against another manager each week. The categories are:
Pitching Categories: Wins, Strikeouts, Holds, Saves, ERA, WHIP and K/BB
Hitting Categories: HR, Runs, RBI, Net SB, AVG, OBP, SLG
So, wins/strikeouts/holds/saves/hr/runs/rbi/netsb are counting stats. These add up throughout the week. If you have 10 home runs and your opponent has 9, you win that category.
Era/whip/kbb/avg/obp/slg are rate stats. If you have a .299 avg and your opponent has .280, you would win the category that week.