I would research about the 3D aspect before I decide on Evo/Optimus 3D. It seems to take 3D videos and photos, but do not expect it to give you 3D experience like in movies or even 3D TV. Most people seem to think 3D as purely gimmick and not worth the extra price. But you might like it. So research on that aspect. Other than 3D, both Evo/Optimus 3D screen cannot match the super amoled plus of SGS II. Also hardware wise SGS II is far better. So see if it is worth for you to pay 7-8k more for 3D.