I prefer the water flower, basically, the block before water stops, you dig down 1 block, so the water flows down, you then dig 1 block in fron at this level
add some stairs, add a sign above the 1st dug down block, add water above stairs,
basically the mob gets pushed along, down and then up the stairs, it works awesome, credit goes to splat for perfecting hte design.the mobs a decent distance for pitfall traps or lavablades, I prefer fall traps
