Most new clubs will be sporting the new DJM-800 or the allen and heath xone:92.
Lots of clubs still use the xone:62 though.
If you want lots of effects go DJM. If you want smooth EQ's and filters go A&H.
Xone:92 has lost the studio style faders that the xone:62 had and replaced them for more dj like faders. The xone:92 also has 2 independant filters, and the filters sound amazing.
My advice would be the djm 800 though. it really is the bees knees and sounds super!!