I am wondering how these 2 work, Ninja I know little about, Smn I played but is only 41 atm and I heard that the expansion has messed with them a bit.

I am rather disillusioned with my bard atm and thinking of lving my Ninja or Smn up. Which of the 2 is easier to play and why? Do the smn pets still get wrecked by aoe's? Any useful tips?