Ok, no wrong answer here...here is my methods...I have had my warrior fissure set for quite some time now and have several millions on top of that right now.
First of all, solo monk IMHO is an absolute must...Why? Well, they can solo almost everything, and yes I mean almost everything all over Tyria. I use mo/war and I never have to change secondary proffession, I farm out of the way places...such as black curtain, or the villainy quest (hill giants included) , or inferno imps in Talmark, forest minos, you name it, I farm it with my monk, fog nightmares are awesome just outside TOA, as are the 9 or 12 tengu elites. Some tips, change mobs and areas alot, always carry a sup ident and sup salvage kit, salvage everything, sell wood at 10 gold each, when charcoal drops from the inferno imps, go craft deld steel, this is huge profit, buy low on high demand perfect mods...zealous axe and sword mods are very nice. I really believe people underestimate what farming weird areas can provide, everyone thinks UW and FoW are the be all end all, they are great but not the only place to go, materials can make you tons of gold very fast, I spend very little time selling anything...once you get the hang of farming with your invinci monk, the world is yours to discover and I use the same build for pretty much everything. Good luck and if you have any more questions about specifics I will be happy to help...oh ya, one more thing which I feel is huge, I hear people all the time say a farm run longer than 10 minutes is no good, I disagree big time, I go on runs that can last 1-1.5 hours, but I clear several zones which does wonders for anti bot farm codes

And the net gold gain is well worth the time