Lawful evil types 1 or 2:http://tvtropes.org/...Main/LawfulEvil
Possibly/hopefully in a party member. I mean, the closest to this that I remember seeing is Vhailor and Vhailor was a really awesome character. Possibly a party member of the Knight Templar variety:http://tvtropes.org/...n/KnightTemplar
which is also like Vhailor, but he's not the only way to develop this character type. Vhailor is inhuman because the man has transformed into or has been transfigured by his ideals, but there is a lot to develop in a genuinely human character(even perhaps with some perspective) who has put this mask on their approach and perspective to the world.
Also I'd like to see affably evil characters: http://tvtropes.org/...ain/AffablyEvil
Maybe we don't want a major villain who is affable but very evil seeming, but I wouldn't mind some NPC(or party member) who broadly fits into this trope.
Clever figures who use Xanatos gambits to win: http://tvtropes.org/...n/XanatosGambit
So, they may be your enemies, or they may be your allies, but the common tendency is that they are really good at winning no matter what path you take by setting up the game as an I win-you lose in advance.(There are multiple suggested character types mentioned in the article, but it's easy to build a character like this once you know what it has to do)
Henry Kissinger: http://en.wikipedia....Henry_Kissinger
Need I say more????
Also, I think that some degree of recognition of heroes/adventurers as inherently dysfunctional people would also be kind of nice. I mean, adventurers are workaholics; they aren't afraid of putting their lives on the line(with real and extreme risk) at any second or even at the smallest provocation; who continuously kill people; who invest large sums of time and money into becoming good at killing people(even before they start, as professional killing equipment is costly); who are continually making difficult moral decisions; and who either can't or won't integrate with mainstream society with jobs more likely to result in conventional success, happiness, and all of that, even if they do start to get very rich. I mean, I'm fine with a hero/adventurer(or even villain) finding a happily ever after, even the entire party doing so, but I think recognition of the extreme nature of adventuring makes some sense.(More and of a different nature than peasants simply heckling the adventurer, but deeper and more psychologically rooted)