No comparison pictures, but I can offer this comparison -
Make:2015 Shoot Out negative space tolerance test:
Slic3r 1.1.7: Three of five pins removable
Repetier-Host v1.0.6/Cura Engine: Two of five pins removable
Simplify3D v2.2.0: Four of five pins removeable
MakerFaire print-in-place articulated robot 65% model:
Slic3r 1.1.7: All eleven joints operable, but some took some careful teasing to get them working
Repetier-Host v1.0.6/Cura Engine: Only six of the eleven joints were operable, even after teasing
Simplify3D: All eleven joints operable, with little or no teasing needed on the final print
DISCLAIMER: These results are not from a controlled comparison test - for example, different filament ended up being used for each