I really think that Phoenix cards are the best cards for magic on the market nowadays. Phoenix cards have a familiar face (bicycle) and have 4 beautiful and unsuspected aces (larger center pips), perfect for any ace packet trick. The back design is beautiful, but at the same time, very simple, making this deck a very "common" looking one. It also has a very nice oneway marking design, that i started to use recently. (I didn't know it had!!!)
The only con that i could find is that the producers (card-shark) don't have those more complicated gaffs (something like presto printo or pip streak). But they still have the whole common gaffs (3-card monte, marked deck, double-face, blank face, blank back, etc.) and with the new PRISM deck by Joshua Jay (made with Phoenix Cards), i don't think that i will be needing any other gaff anytime soon.
Phoenix deck is my top choice if you want to perform any kind of card magic. Those cards are really going to rule the world!

looks standard but it has special aces and has a very subtle one way back