if you're playing HC, then start with putting some stats into vita , it adds like and you'll need it
if you're playing sc, it is not needed
at lvl 65+ ,you should have
100-120 dext
as much str as possible ( 120+ )
nothing in vita
nothing in int
and unless you're planning on using staffs, i'd go with a fighter or a barb to start with
( better def / dext / str )