I've had a look at these and something just doesn't gell for me: this is a common problem for many iso games mapped to keyboard cursor keys, where UP goes North East, DOWN = South West, etc. I find this incredibly unsatisfying. Let me state again this ISN'T a criticism of any of the suggested kits, but a more general comment.
I guess the options are:
1) Keep it as is - always an option
2) Make the keys map to NESW and rely on two keys to go INTO the projection - better spatial mapping by player, effectively to 8way movement.
3) Make movement "first person" where UP goes forwards in whatever direction the character was pointing and left/right rotate orientation between 'allowed' directions.
4) <insert your ideas here!>
It would be nice to experiment with these kits to see what works well for the player. What do people think?