I actually made a guide about this (kind of.. it's about the weapons, not the classes themselves) but I've been too lazy to submit it to GameFAQs or anything. eek Here's part of it...
Pros are in blue.
Cons are in red.
1-handed Sword:
Highest attack speed
Can use shield
Weak compared to 2-handed weapons
2-handed Sword:
Faster than other 2 handed weapons
Higher attack than 1 handed weapons
Weaker than other 2 handed weapons
Can't use shield
1-handed Axe
Can use shield
Usually faster than 2-handed weapons
Sometimes slower than 1-handed sword
Weaker than 2-handed weapons
2-handed Axe
Stronger than 2 handed sword
Faster than all 2 handed weapons of the same attack power
Slows down at higher levels
Can't use shield
1-handed Blunt Weapon
Can use shield
Usually faster than 2-handed weapons
Slower than sword
Weaker than 2-handed weapons
2-handed Blunt Weapon
Stronger than 2 handed sword and 1-handed weapons
Slowest 2-handed weapon
Can't use shield
Spear
Stronger than 1-handed weapons and 2-handed sword
Occasionally faster than polearm
Higher damage when stabbing
Usually has slow attack speed
Slower than most 2-handed weapons
Can't use shield
Polearm
Stronger than 1-handed weapons and 2-handed sword
Higher damage when slashing
Usually has slow attack speed
sometimes slower than spear
Can't use shield
This is, of course, excluding the skill-related pros and cons. Also, sorry about the formatting. It looks a lot better when you're viewing it in a fixed-width font. X)
Edit: I changed the formatting and color-coded it to make it a little easier to figure out...