I would like to buy either the new daemon prince model or get the bloodthirster. I like both models about the same so it comes down to how they do on the table. I did up a list for the daemon prince and jacked him up pretty good about the same points cost as the bloodthirster. Now most of my experiance with greater daemons comes from fighting against them in 2nd edition rules and they could dominate. It kind of looks to me like they are watered down a bit in the new rules (if the rules in codex chaos are the most recent??). So if you wanted to field something that would go head to head with a necron c'tan and win what would you go with?