What is a e-swing mix? Google sendt me to this site: http://electro-swing.com/
Old swing combined with the sounds of tomorrow.. I see, sounds cool!
Regarding mixing I do not have the one and only answer.. I would start with sweeping every sample and cut the frequencies that sounds harsh. Then use the LPF and HPF on the mixer, and go from there. I would probably end up with 12 different mixes at the end of the day.