Mine is magicyoyo N12 with snake bit strings
Summit with YYSL Ammo
Co Lab with Twisted StringZ type E
ATM a Recrev Mangaroo with a Crocostrings Marshmallow.
7075 gambit with crocostrings cat tails or fantasy chords!
Especially barefoot, it adds to the experience.
YYC SE Spectrum with Fat Kitty
Wish I could find something that lasts longer than Fat Kitty that still keeps the same feel. That would be my dream string 
g2 triton or al7 triton and digital strands string on a boss rage bearing (dry)
Werrd fruiture with yellow blueprint or fat nylon kitty. The blueprint and kitty have a nice thin feeling to them when slightly stretched before use. It also still allows it to be paired with a ripple or crucial grooved.
Irony JP 2k13 with Blueprint string.
Bonus info - Gold CT bearing and IR Pads.
One Drop Benchmark H & DMII with Kitty fat green or red.
DM2 with YoyoStringLab venom multicolor poly/Cotten blend
Jackie Moon P2 with Gator Floss.
YYF Aviator with Toxic Lacers
OR
Puffin with Toxic Lacers
Poor blackbird.
yoyorecreation blink with long, fat polyester string. best combo I have