There is no difference for the XT or core being increased blocksize! The debate is to focu on the increase of blocksize.
XT has gained the consensus from the majority! What is the point of finding counter arguments to be against the public?
XT has not gained consensus from the majority, Xt has maybe 14%.
XT is not just a block size increase but is also an implementation of other features, this is why I would prefer a block size increase on Core. I want the block size increase, I do not want Hearn's added features, and I want consensus.
I believe we have probably 90% consensus for a block size increase on Core, the problem is that much of the opposition 10% is the Core developers themselves. (I hear they think BlockStream will do well...)