Well, there are also some monk combat styles that haven't been finished yet, as well. As for the one-handed combat style, would some abilities like these work?
Set-up Strike: As a standard action, or instead of two attacks in a full-attack action, any ranger wielding only a 1 handed weapon in one hand and either nothing or a shield in his off hand may make a touch attack with their off hand against any opponent within melee range. If this strike is successful, instead of dealing damage, their opponent is instead considered flat-footed until the beginning of the opponents next turn.
Reactive Theft: When missed by a melee attack made by an opponent's weapon, a one-handed style ranger may react to take the weapon from his enemy.
Resolve this as a disarm attempt as normal, except that it provokes no attacks of opportunity and the ranger gets a +2 bonus to the attempt. The bonus stacks with all other bonuses.
If the attempt is successful, the weapon is either on the ground (if the ranger has a shield), or in the ranger's possession (if the ranger has a free hand). If unsuccessful, the opponent may not react to disarm the ranger.
Use of this ability counts as an attack of opportunity for the ranger, and cannot be used if he has none of these remaining.