Binders - turn autoassist off, and start combat with blackjack. As for the binding skills, its best to jut spam practice it on your free time.
Poisoners - They'll keep ya busy and have a few bugs that are fun to exploit, but you pritty much suck at everything but being an annoying dick till 30+ish
trappers - By the time you can make any decent traps, your opponents will be able to take anything you throw at them and then some. After your trap goes, what cha gunna do when your target is at 85% health with a few maledictions ? trip trip trip. 75% of the time you'll be out damaged.
Thugs - By far the easiest and most effective thief path to take. Binders come close, but in non pvp combat there isnt too much to do cept circle stab. Knife knife knife, trip trip trip, circle circle circle