Most of the breakers have pretty decent coal. If it was your only time coming down I would suggest going right to the Harmony mine. But,,,,,,, each breaker is sort of cool in their own way and every year would bring an opportunity to check out another breaker. I have made speed runs down to different breakers and nothing is worse than to drive forever, get out and load up , turn around and go home with a drive that lasts forever. The ride from R.I. is a long one. The guys that work the breakers are a real friendly bunch and most will spend a little time with you and talk their trade. That's if they are not busy. At UAE, they are usually busy so it's all business. If you get lucky and go there when no one's there, they will talk too!
Another consideration is the wear and tear on your rig. Extended tows and big hills are rig killers. Breakers closer to the highway are better for long term rig health. One of my best times was a run down with forum member Coalburner to Calvin Lenigs. The ride was spectacular and the breaker was interesting as hell. He also took me to the Superior breaker. Very interesting place! But those places , along with UAE are quite a ways off the highway and involve long hard climbs and long hard braking. Rig killers.
What I have been finding out is there are plenty of breakers, closer to the highway, that sell pretty good coal, sometimes quite a bit cheaper. Jeddo is one, Hudson is another. Someone gave me a sample of Kassy Kassa a week ago and it is impressive. Burns hotter and doesn't fill the ash tubs. A winner in my book. Something that needs a better try.
Coal history is one reason to try several sources also. There are different coal mine tours that are near different breakers. Also coal museum by the Hudson breaker area. My favorite was to go to Harmony and catch the Mine tour in Ashland on the way down. I have to admit that the red ash coal area has more to offer than the white ash area. The Pottsville area has the Yeugling factory tour, the coal boiler factory tours, the old mine tours, the Centralia experience, the breaker tours. The northern white ash area has great coal but the opportunities to check out the coal related stuff is limited to the museum and old coal mine tours. I haven't been to those yet.
I guess if there was a recomendation of where to go, it would really involve how much time you have. More time, go to UAE. Check out some coal area stuff. Less time, less money, less tear on rigs, go to the Kassy Kassa or the Jeddo. This is all stuff I can recommend. I do have a 10,000 lb. trailer that has worn off three sets of tires and broke down badly several times. Try to time your runs so that you are not going thru Scranton / Willkesbarre area during rush hour. Noon untill two is a good window and after six seem to work better with the road constuction there being an issue.
Good luck on your trip and don't forget your spare tire or two and a bottle jack to change a flat. Keep the speed down and you will be a winner! Also because this is a two page thread, you are REQUIRED to take plenty of pictures and post them as soon as you arive back home. Note* these pics must be of anything other than your truck/rig full of coal. Ok,,,,it will also work if you have those too.