I prefer playing as Necropolis. I also like the Elves, but I've gotten a bit tired of them. Necromancers are simply mega-mages (it's a shame they reduced their praised necromancy, removing the skills to raise skeletons and archers, and the ability to raise them indefinitely). They have awesome dark magic, but their guild of mages is definitely a bit dull; you can find decent spells there, but only very rarely. Despite some shortcomings, I still consider this faction the most suitable for me.