Mattachine
Adventurer
Also, without some sort of alignment mechanic, you are removing the traditional spells such as Detect Evil and Protection from Evil...
Alignment is not subjective (see my sig below)...
If someone casts Detect Evil on a murderer, they are going to ping evil. Its not like you can argue "Well, I'm not in the middle of murdering anyone right now, so since I am not doing anything evil that means I am not evil (right now)".
I like the fact that a Paladin can use such abilities to his advantage.
The problem is not all murderers are evil.
Some folks want absolute alignments, other want more subjective alignments, and some don't want alignments.
The problem arises when the absolute alignments (which work well for demons and celestials) don't accurately portray the complex behavior of people. Good people sometimes do bad things, and feel guilty. Guilt is not evil. However, many playes and DMs read alignment too simply, and a single act of EVIL moves a PC out of one box into another . . . but do they ever move back?
I like the 9 alignment system, but I also DO NOT like the alignment spells/effects, and the idea that most creatures are rigidly in one alignment box or another.