Like them both, ... but using P5 more, I would have bought P5 just to get rid of p4 crosstalk. ... but it is, to quote Forrest Gumps Mom "like a box of chocolate... you don't know what you are going to get". But hey, what ever you needs are... like "Poser, rendered in Bryce, lots and lots , of Postwork in PS"... like I said what ever your needs/style require.