My only concern this year is there's a good chance they may schedule The Orb at the same time as My Bloody Valentine. That would be tragic.
 
Having seen both acts here in London last year, if a clash does eventuate my advice would be... go see MBV. (heresy on an Orb list i know)

But just think... how many times you have seen The Orb vs How many times you have seen MBV.

That MBV gig was a sonic assault on a level i have not experienced before.

Rich