Warriors tend to be easier to play. With the open skill system there is not a great difference, though.
differences between classes (minor spoilers)
Early Starter Tips (NON-Spoiler Version) (contains much of the information in the above topic).
Other fans range from 11 to around 70, that I know of.
Swords tend to be the best melee weapon, or at least there are more potentially powerful swords in the game than other types of weapons.
I stuck with Sword Expertise, though had enough spare skill points I could have maxed another couple expertise as well.
BTW, if you are thinking of playing an archer, True Shot and the damage portion of Crossbow Expertise are broke. Archers are a little over-powered anyway, so the bit of missed damage is not very significant.
The chance of getting stats in the higher range for an item is related to character level in the full game, as well.