I'll make this short.
Heavyweight armor is for stalling for reaaaaal long in PVP's, Demo's, CC etc. They give good blocks, and are a great set for PVP's. I do not recommend it for hunting as your fights will probably take a minute to finish.
Dodger armor is like a mixture of Heavyweight and Bonecrusher. Dodgers dodge well, and give great hits, sometimes even higher than a bonecrusher. Its a good set if you want the advantages of a HW and BC.
Bonecrusher armor is usually for fast fights, in rages and stuff. It gives one of the most critical hits, but thus doesn't offer any protection, and once your stunned, you may get knocked out in a couple of seconds.
So, like I said. HW for PVP
Dodger for a taste of both HW and BC (I recommend it for both valor, and raging)
BC for if you want fast fights, and I mean real fast.
Good luck choosing your set.