Burton Ion are a nice boot & with Autocant this year. They are rated a 7, but they are not that stiff. Money no object, try the Burton SLX. You really should just try on as many as possible & get what fits you best.
You're going to love the Proto.
i personally disagree he claims he rides park mostly... ion and slx are going to be way stiff.... i would prolly go with burtion hails or grails for the nice articulting cuffs, and they are both very well padded and comfortable boots... more comfortable on the hails, but more response from the grail