Buy the local One XL - less issues and given the One X is having major quality/reliability issues, warranty is a must... I'd honestly stay away from it if you want the truth.
2 friends & myself out of 5 have had to send ours back for warranty issues with screen (yellow dota), connectivity, mainboard failure etc.
My first HTC phone in 5 years to have these problems, and seems a lot of the internet is riddled with similar problems all over the world on the One X