I ABSOLUTELY FREAKING ADORE THIS SERIES!!!
This series is seriously one of the defining games for me as a gamer. I know every inch of every corridor, cavern, and dungeon in those games. I love the sense of exploration. I love how satisfying it is when you gain a new level, or an important item, weapon, or piece of armor. I love the soundtrack. The first-person view action-RPG gameplay is awesome, even if it is slow. And I even love the old, chunky, blocky 3D graphics.
I own 1 & 2 (U.S. versions). And I have KF: The Ancient City on PS2. There's also the very original King's Field for PS1, but it's a Japanese exclusive. I have played a completely redone PC version of the game, and it was cool, but it almost felt like a demo compared to the size of the later games.
An updated, modern take on this series would just be so freaking awesome. The graphics would be so much better, and the gameplay could be much faster with the technology today. (And please don't point out the Souls games SPIRITUAL successors, but not the same).