Added explanations to first post
Bismarck is one of the most reliable civs out there. He will either declare on you or be friendly with you, but he's not likely to be an ass and be guarded or hostile (sissies that hate you but won't declare). However, he can declare war at "friendly". That's what deceptiveness means. He's just generally a very honest warmonger (and that usually gets him killed).
Thanks for that.
I don't know about Bismarck being most reliable, he always hates me and DoWs on me. But thanks to you, now I understand why. It doesn't seem so irrational anymore.
It seems to me that his pretty high 6 warmonger hate when he himself is quite the warmonger - 7 (second only to Napoleon and Montezuma) AND his extremely high 8 denouncement willingness is the reason he inevitably denounces, hates and DoWs on me in EVERY single game (He has a habit of denouncing me in the first 10 turns after meeting him for no apparent reason). It is also the reason why so many civs hate him so often... Because he simply hates everyone (those Germans...
joke), he hates warmongers and he denounces everyone for farting or looking at him the wrong way... and then he DoWs on everyone. Unfortunately (or fortunately) his warmongering skills/ability isn't a match for Alex, Napoleon or Oda... or even Cathy!
If his actual ability to wage war would match his attitude he'd be one dangerous German. He spams and throws inferior units at his enemies... which no one it seems have any problems of deterring. In other words he can talk the talk but he can't walk the walk..? Uh... or how did that phrase go?
Actually that's not accurate, that phrase would apply to Washington, not Bismarck. Bismarck does actually walks the walk, but not successfully enough.
Could you please do the "How to deal with" for other civs too?
Also no culture victory for AI!?!? Lame, but at least it explains why no one ever really, truly, seriously invests in policies.