What is the best weight distribution hitch?

I have been reading for a while now and was absolutely sure I needed a Hensley Arrow hitch. Let me start by saying this is my first trailer. I have a 2000 chevy 2500 6.0l and a 8000lb trailer. My dealer is a Reese dealer and that is their main product. I ended up not wanting to spend the money on the HA and letting the dealer install a Reese Strait line #800. After a brief lesson I hit the road from PA to NY. The truck dives awesome and was a relief to not be affected by tractor trailers or wind. Had a scary moment and realized speed has to be respected and will be slowing the pace down. At this point I don't know if the Henley would have been better, but the Reese feels pretty safe and wasn't all that expensive.
Learning to back up, I don't think any hitch is going to help me. I dont't know how you guys make it look so easy.