I dont have it yet but the reasons for me why i want S over X are these:
- Lower price because i have limited budget. And even that the One S is also quite pricy right now. I can have Galaxy Nexus or SGSII for 20% lower price..
- This will be my first android phone and i want to keep the size of the phone down. 4.7" seems to be too big screen for me and optimal would be around 4" with very small bezels. I just dont want such a big device like One X to carry every day in the pocket.
- I really like the alluminium unibody with MAO threatment and super small thickness.
- Higher performance because of Snapdragon S4 and longer battery life. I dont even like the idea of having quadcore, seems to be useless..
For me i see advantages in One X these:
-NFC - its nice but i wont be most likely use it anyway
-32GB storage - yeah this is much nicer than 16GB in One S, but i think that its going to be enough for me
-Nicer screen - As a lot people said One S screen is still a very nice and its superior to almost everything except few phones like One X or Galaxy Nexus. Of course i would like non-pentile amoled display instead but i am quite sure that One S screen will be overwhelmingly awesome for me anyway so i can live with it