Requests For Solo Farming Locations

I just recently made a 55 in Factions campaign, and I got it to level 20. I also have from Beacons Perch-Droks-Granite Citadel. I'm wondering if I should progress further through both games, or go onto Nightfall and progress through that campaign.

If anyone has any advice, whether I should stay where I am, or go, please let me know.
Also, if you have any good farming places,, I'd appreciate it if you shared them.

Thanks.

There are sooooo many 55 guides and locations and all of what you looking for in the farming section dude... Just take a look there and browse the pages a bit, you can't miss them...