A is the dangerous kind.
I hate B. It is the hard endgame.
C is a rough.
D kind makes many drawish positions.
I prefer E "Knight vs. Knight" ("Knight vs. Bishop"). I count that a Knight is the strongest chess piece. Because it changes a colour when it jumps, it shuts a way for a pawn. And it helps to win, of course!
How a kind of the endgames do you prefer to play?
/read about this/
A Queen vs. Queen;
B Pawn(s) vs. Pawn(s);
C Rook vs. Rook;
D Bishop vs. Bishop;
E Knight vs. Knight;
F Rook vs. Knight (or Bishop);
G /other your variant.../