I'd say your greatest strengths are speed and stealth. CSM and SM do a pretty good job at tactics and planning as well.
I thought our strength was psychic prediction and superior mobility (via the Webway). Those are the sine qua non of Eldar warfare.
You really think serving the Dark Gods is easy? It's not exactly being spoon fed when there are 50 spoons, 45 of which are poisonous.
It is a walk in a park. Said park is chock full of angry Imperial authorities, walking fungi wielding choppas and dakka, genetically modified jocks in glorified armor and their asshole cousings, high-tech blue runts that like to chuck weaponized plasma and smartcast missiles at stuff that won't accept their nerd leaflets to join quasi-Communism, constantly evolving bugs and who knows what else.
Psh, he is excellent at tactically destroying his offenses and strategically blurring his priorities.