Well, I don't really put much effort. I just play the game 1-2 times in a row and then I go about my usual work for several hours or a whole day. And after that, I write up a wall of text (but writing something short would be more complicated! :—))
I absolutely agree that the melee attacks in particular need to get boosted. A knockback or stun effect would be great (as I noted when I was ranting about the hammer :—)).
Anyway, just now I had a particularly fortunate run with the axe slash guy, so I was even able to kill the dragon. But I didn't win! The monsters just stood on the amulet all the time and I couldn't get them to go away from it. I tried to run circles and lure them away but I got killed in the process (essentially if you don't run straight away from them, you get hit, and if each of those hits is for 5 or 10, you can't afford to take many of them).
I think that reinforces my point about the monster speed. The monsters in general should be slower than they are now, and none of them (except bosses) should be allowed to be faster than the player. I suspect that the archer is so much easier to win just because he has the 30% speed boost which is just what is needed to evade the monsters efficiently, have them run circles without being hit etc.