In the very near future I'm pitting my newly risen Tomb Kings against my girlfriend's Daemons. I got her into the game and the little daemonette picked one of the nastiest books and armies around!
The thing is that I'm actually afraid of being totally overwhelmed (in small games at least) by the Daemons, they being very powerful in 7ed and the TK being much more humble in power. I have no profound pressure to triumph against a girl (whole army of girls actually, my gf is going full Slaaneshi with the Masque leading Daemonettes and Seekers) but I'm still going for a well-planned army list just because I don't want to see a total newbie just throwing stuff at me and winning too easily with those multiple, nice Weapon skilled, always strike first poisoned attacks from a model with a nifty Ward save on top of everything.
I'm thinking about going character-heavy. I'll invest in 2 Liches and maybe a Prince, the opponent being low on magic so I should get some stuff through. For Core I'm thinking my 6 light cavalry and a decent block of hw-skellies (the only Core I have for now). For Special there's two Scorps and for Rare, a SSC and a Bony. For 500-ish points, what to get?