User blog comment:Sanguinior/primarchs vs demon primarchs/@comment-6078851-20130325003702

if it's straight up 1 vs 1 close combat?

in that case i reckon the loyal primarchs (who i'd be rooting for) would be torn to shreds :(

my reasoning goes thusly - when measuring intellect, power and ability the daemon primarchs are everything that they were pre-daemonhood (mostly), plus they now have the extra resilience, power and abilities that come from being exalted chaos champions.

leman russ would probably be the best hope of the loyal's scoring a single win.