You're being far too optimistic about actually landing a hit.
On sins, any trapsin will annihilate you. Ghosts have weapon block + 50% DR, and probably won't die in 1 hit. OW + Venom will rip through your blocklessness. If it's a duel of atrittion, they have the upper hand. For you to even touch a ghost / hybrid, you will HAVE to get near, and definitely be whirlwinded / trapped.

Actually, I do almost always one-hit sins when I hit them. Of course there is the block problem, but I have stated that over a million times. And when you get near them, its not like you're staying there. Leap is actually a VERY effective evasive skill. Usually you can leap out of the way before a trap hits you or they ww over you. Besides that, a leaper has a weapon range of 5, which gives you just that much more time to gtfo of the way.
Barbs someone else can talk about.
And yea, you can leap over hammers. Who cares. You can't attack them unless you're near them. If you're near them you're in a hammerfield. You have a 1/4 chance to damage them. They have a huge chance to damage you.

...Its all obout the skill you have on where you leap. Its not like you randomly click everywhere around them and hope you hit. You have to think where to leap that you won't be in line of a hammer. Of course, nobody is perfect, so of course you won't always land in the right spot, but with practice, you can get there 8 times outta 10. And then you still have a small bit of time to leap away.
Dudus have advantages even over BvC's.
Your "tricking them into running the wrong direction build" doesn't work. Even if you are right next to them as they tele by you, in the time you leap and come back down they will be gone.

If a player is unlucky enough to be by you while you while you're on the ground, they're dead, mostly because pretty much the only time you're on the ground is when you're going through the "attack" thingy. Not the actual swing, but that little bit of time when the game calculates whether you're gonna hit or not. Whatever thats called.
GA's home. Javs have maxblock / doj. Good luck.

Yeah....GA's are a pain in the arse. Yeah...Javs have mb/dodge. I covered this. Its a hard duel, but eventually, you will hit them. Waiting to get lucky might not be the best thing in the world, but it still happens. Like I said, this isn't the greatest character in the world, but it works, and its still fun.
Sorcs, you're making it seem as though you actually hit the sorc at a consistent basis. Any good sorceress will not be hit by leap attack enough for you to beat them consistently.

Actually, I do hit sorcs on a consistent basis, and usually, all it takes is one hit.
I typed my replies in there.