Originally Posted by
Servasus
You can obtain 4,000 JP and 4,000 honor (max for both) by running BGs from levels 1-60. This then converts to around 6,700 JP total, which is enough to get you only a few pieces of heirlooms. By the time you get your full set of usual heirlooms, your new toon on the new server is gonna be almost level 80 or higher anyway, so what exactly would be the point?
And yes, I know this to be true because I farmed nothing but BGs on my rogue and I was level 62 when I reached my cap on both honor and JP, this is WITH the honor bonus you get from the guild talent, as well as doing many weekend battlegrounds with extra honor rewards.
You can convert conquest to honor and valor to justice, but not the other way around. Also, you can convert valor to conquest, but not conquest to valor.