From the 19 twink warrior persepective:
There is a difference in Hunter Twinks. As noted by someone above, the ones with attack power and intellect can eat you alive. If they stack stamina, they can be tough, but not impossible.
Most hunters, a good warrior twink can take them down. I use improved charge as a talent and glyph of charge for the added range. Of course, it all depends on who gets off the first hit. If I charge first, I win against a good hunter probably 75% of the time. If they kite me, I'm toast. I might survive a few of them by using pillars, buildings and other features.
With Enti's Quenched Sword, hunters, rogues and pally twinks were finally prey. Not easy prey, but prey. You could engage them and work in a few rends and they would go down readily. With that nerf and the sword going away, I went through withdrawal bad. Stopped playing for 2 months.
There is 1 ally hunter in my battlegroup, though, that I lose to 95% of the time. Female dwarf. Best friggin hunter I have ever seen. The only way I have ever won is to completely blind side her from behind. Unfortunately, I have absolutely no respect for the player, as he is a total ass. He verbally taunts with every macro so that he /laughs, mocks, whatever. To me it is no big deal, but for the lowbie non-twinks, he just destroys them and makes them never come back. He camps the GY, kills the lowbies, all the really nice things that give twinks a bad name and all the anger in the forums.
But, there really is, in my opinion, almost no way to kill a hunter 1 on 1 if they are good, twinked and get the first shot off. In the 19 bracket, they are flat-out way more powered than any other class.
That is why my Tauren hunter twink, Buffchip and his spider, Webster, is parked at level 17, holding his Twisted Chanters Staff in one hand and Lil Timmy's Peashooter in the other and waiting for the 3.1 nerfs to happen, adapt and hopefully even things up a little bit. Bwuuuuaaaahahahaha! I just hope I can avoid the temptation to go melee with my squishy hunter....