2 Levels of swordsage would net 7 maneuvers, wisdom bonus to ac, weapon focus: Claw, prof. with all martial weapons, 2 good saves. Though by RAW I believe the wisdom bonus to AC applies only when wearing light armor.
The maneuvers and stances you could grab could add quite a bit of versatility. I'd go with 2 sword sage levels over two monk levels, assuming the DM is okay with the wisdom bonus to AC applying without any armor (which makes sense, but is not supported).
Of course If I were only going to take 1 level I would take Monk.