The Apple Evolution, the Xpress, or the EZ Press.
My vote is the EZ Press only for ease of use. The EZ will work on all bows if you get the adaptors for bows like the Bear Attack, Bear Carnage, and the PSE Omen. Price $600
The X Press will do the same with its adaptors for the same bows but takes longer to set up. Price $900
The Apple will work on all bows without adaptors but takes a while to set up as well. Price $1,250
So cost to value,, The EZ Press wins, and its the most commonly used in shops today because of these facts.