Which 3D films have the best 3D effect?

After watching a few 3D films at the cinema i was wondering which films had the best (pop out) 3D effect. When I watched Avatar I thought the 3D was great but it was more like you was looking into the screen rather than objects flying out at you. You might say that pop out 3D is just a gimmick, but since I purchased my 3D TV I have been trying to get the best 3D effect. Has any one watched a 3D film that has made them think WOW! that nearly took my head off. If so please let me know because this technology still amazes me.