i own both so here it goes simply:
btw there is reviews on both, look in the complete review section for the links..
prophet pros:
visual
hard-hitting
everyone loves money
looks like real magic
can be used to achieve several effects, eg. paper to money
cons:
cant have all the bills examined
uses a gimmick (but so does DD so ignore)
specs may want to grab
handling is harder than DD
DD pros:
VERY VISUAL
again, everyone loves money
you are 100% EXAMINABLE at the end, and with a little work, at the beginning also
Very fair..
INCREDIBLY easy to do
Good for card magicians and general beginners
when specs want to grab, they can
Cons:
again, uses a gimmick
Currency may be under scrupilation in certain countries
If you use a specs hand, will require audience managament, nothing major tho
only has one routine on offer, but the gimmick can achieve different changes etc.
so the choice, as they say, is yours, whichever sounds more like your kinda effect... i personally just got prophet, and its so fun to play with, but DD is great for a 'quick, do a trick' situation, whereas prophet should be used at the right time...
overall, id got with DD personally, but if you want my honest opinion, by a book like CC or RRTM.... or BOBO'S coin magic if you like coins...
if you dont like books, I HIGHLY RECOMMEND THE DANIEL GARCIA PROJECTS, but of course, im trying to answer your question, not tell you what else too buy...
depends on your style man, hope i helped,
joe
btw: to the person above me, how is prophet easier????