Tip about spamming Wing Clip to powerlevel weapon skill: In short, when you are trying to level up a new melee weapon skill (say polearms or staves), try spamming Wing Clip. It’s an instant melee attack so it gives you extra chances to skill up! And it doesn’t do a lot of damage, so you can keep your poor victim alive longer if that’s your goal. For example, if you put your pet on passive and attack an enemy well below your level with Wing Clip (Rank 1), you can wring quite a few skill-ups out of one enemy before it dies.

    As long as you wait for the global cool down (obviously), you can spam Wing Clip and you'll receive weapon skill ups for those hits. It works for any instant melee hit (Sunder Armor jumps to mind). Of course, you not only have to worry about hitting whatever it is you choose to hit, but you also have to worry about killing it.

    So it seems hunters can level their weapon skills a little faster than other classes. And why shouldn't they? They have a lot more weapons to skill up, and it's not like melee weapon skill matters much to hunters anyway, except at the very limits of min-maxing. A melee hit is a melee hit-- if hunters get to hit more often, then they get to level weapon skill faster, too.