Ibra is world class for me, but I wouldn't want to compare to EtoO as of yet. EtoO won multiple league titles with Barca and two Champions League titles. He was a world class striker banging in goals for years. Ibra has done well so far, but the ultimate judgment for comparison will come after 1-2 seasons and list of titles, if any.
I am not even talking about the transfer fee. Just Messi is not on his last season level, nor is Henry, so sometimes I think Ibra didn't adapt to his role 100% as of yet, which is not surprising. Also, EtoO used to score some goals thanks to his pace, so up front we were little more mobile. Anyway, right now, I would say, he is doing good, but I will wait with my judgment until the latter stages of Champions League.