no idea.
my Desire had served me well and the One X was the next logical step. i might look at the S3 but i'll be wary of the teething troubles and Samsungs less than impressive track record of updates and support.
one thing i will say is that, whilst the One X was very buggy for me, HTC are very good with updates. they made three during my month long ownership.
i'll dust of the Desire and maybe i'll go back to the One X in 6 months when things have stabilsed and the prices have dropped a little.
or maybe i'll take a gamble on something a little left field like a Huwaei.
all Android options considered!