I dont not if this will help anybody but I worked on my AAs and making plat at the same time, I kited the Ice Giants in Everfrost. Now u wont get much for plat but its enough to buy new spells and some lowbie armor with. As for exp it is good since most giants that pop are white to u at 51. This works good for mages and wizzys as well not sure about chanters. I hope this helps somebody Good Luck to All and Safe Travels!!

my necro is currently lvl 58, i solo in natimbi all the time. There are good drops (50 hp/mana/end etc) but these are rare, i've seen a couple of gems though. Exp is good, but amazing with LotD. i usually camp behind the magnus and the huts, use the fear technique 'ping pong' and you'll be fine, however they do sometimes resist, so give yourself enough room between you and the mob to recast just incase

At lvl 51 i would be killing in Guthuk Harbor endless spawns and free gems and free platium.