2 week ago i used goldschlager, nice fireball - but burned out too quickly
next i used mineral spirits (paint thinner) it worked GREAT, just like lighter fluid - but i didn't have enough to get the coals going
i ended up using RC fuel (25% nitro) - helluva fireball, took about 3 douse-and-lights before the coals were goin good
rubbing alcohol won't work well because it evaporates and burns off very quickly
go to target and get one of those charcoal chimneys for 7 bucks
no flamable liquids needed, 2 sheets of newspaper...works GREAT