I'm pretty sure the Sword of Mastery (from level 4 Combat teaching) is the best - it does 20% of all elements, so nothing can resist it very well. The Sword of Legend is 60% phys and 10% each of the others, and the Axe of Slaughter is just 100% physical.
Rank 2, Noble Knight, on my third try - I also finished the game with no Sin and every dungeon cleared. (Earlier ones were a rank 5... Brilliant Combat-Something and a Rank 11 Pitiful Beggar, who was a master Beggar and Fortuneteller.) I still haven't gotten anything from the adventures, though - and I'm irritated that I got 24 Constitution at game end. Just one more and I would have gotten that achievement, argh. :(
Attacks that hit an area around your character are auto-hit and can do over 400% the damage of a normal attack. This results in the game having all the relative balance of a game playtested by drunken monkeys, seeing as how you can rush to such skills, put a couple of points in, and destroy absolutely everything in the game by running into a group of enemies and mashing Space. I beat the game with no army whatsoever and a katar, and never even came close to dying.
The underlying premise is good. The fact that "bounce buttons around the screen" mechanic even exists is annoying and detracts from the strategy, especially when you consider the fact it takes away from the potential of shortcut buttons; is there any other reason you can't use a numberpad to select skills? When you put this kind of game in real-time, don't allow repositioning of buttons, and don't allow for shortcuts, then the "strategy" takes a noticible hit, especially when you consider the existence of the interruption and reflection mechanics.
This game is decent, but it could be much, much better with fewer annoyance mechanics and a greater degree of customizing available within the interface itself.
When fighting one enemy is reduced to kick spamlocking and fighting two is a death sentence, then the game you've created is fundamentally broken. I'd give it a one if I didn't respect that you were at least trying.