So I am now 45, just right for soloing Ice Giants in Everfrost Peaks. Problem is there are only three of the buggers and they are normally camped. Is there anything else in the game that is similar PP for the level they are?

My suggestion would be to look up 250 plus trade skill items and see what you can camp and bazaar any of the drops. Drakes hides, velium, Hopper hides, arctic wyvern hides, Othmir Fur all drop from mobs that are about the level you would want to be camping for exps anyways.

OOT maybe?

The Hole or Chardok for xp bonuses ;)

Could also try the zone right before the The Deep I think they are good xp to close to lvl 50 but not sure.

Once I hit lvl 57, the screen said I am now ready for the challenges of The Deep......does anyone even use that zone? Can it be solo'd at lvl 57 or is SOE assuming we group?

Yesterday I made a small fortune and a level quadding hoppers (Lightning Blast is friggin' awesome!!) Looks like its hoppers for the time being