For me quite clear winner: Virtual DJ.
The program is fast, professional set up (as a DJ who has previously worked mainly with turntables I immediately felt in the surface well) and it is reliable. So far I had to verzeichen only one crash, but apparently came from the audio driver of MacOS X.
The program has many additional features but you can not have to use, such as samplers, effects and Tappingfunktion. Basically, however, it can also be "just so" take to mix and just because it plays its full power out. The Beat features for once species are great, you can 3 different so-called. Cue points per song set the program once entered with stores. It has a mixer such as one would expect from the Disse, so it can make crossfades and affect the sound.
Also the variety of audio configurations is one of the great strengths of the program, although the options were designed here a little more transparent and umfrangreicher may be. Need to use unusual setup you definitely create an Advanced configuration, but this is relatively simple.
But the pre-sets are already wonderful to use.
Small drawback: you have the smallest professional version (Home Edition) commercially acquire in order to work reasonably with the professional program. While standing in the terms of reference of FREE Home version you can use completely unrestricted, but unfortunately that right is limited. Professional setups can only 10min. Long then test the program switches from the function. Can only be described as a trial program thus actually.
The full version of Home Edition, however, has all the features super (with a few exceptions) and works.
Small confusion of tongues: the here offered "Virtual DJ 7 Pro Basic (PC + Mac)" corresponds to a function of the Home edition only just that all functions are available and stored. The price of around 75.- Euros is perfectly fine - after all, is the PRG at list price at EUR 129.-. A bargain so.
My Conclusion *****
Those looking for a program for professional DJ-ing, who needs complex audio setups, while looking for a quick easy to use, reliable program with Virtual DJ come to the right address.
Whoever "just so" will be little mix and make your own mix eg for "home use" wants can be quiet also download the FREE version of the manufacturer's website and use that extends for the full.