YMMV. You may notice a trend.
In no particular order:
LGC Churchill Natural
Graycliff Professional Pirate Blue
La Palina Classic Toro (dead and flat)
Rocky Patel Edge Maduro Torpedo 2013 (terrible start, tunneled badly immediately)
Camacho Triple Maduro Robusto (good start but another poorly burning wrapper and binder destroyed this post 1st 3rd)
Bahia Maduro (lackluster profile and cheap wrapper)
AB Tempus Maduro Terra Nova (cap busted off, plugged draw, then tunneled, just a disastrous roll) Officially the lowest score recorded
Viaje H&H Rapier (poor roll, profile, suspect storage)
Tatuaje La Casita Criolla Corona (terrible roll, profile was not for me)
Camacho Corojo Maduro Toro (improperly fermeneted leaf, downright gross)
La Duena PL No. 7 (completely unbalanced)
Quai Dorsay Imperiales (completely plugged, bland - could be harvest or storage or both)
CH LC50 2015 (OR Fausto-esque profile, combustion issues forced a fast smoke and destroyed the profile)
CoH Custom Sublimes (no bueno)
El Titan De Bronze Redemption Maduro (tasty but linear profile, rolling nicaraguan tobacco in the Cuban tradition resulted in a total plug on this one)
Caldwell L&F Pepper Cream Soda "BUTTER" (another plugged unsmokeable cigar with a terrible profile)
If I cant even smoke it or it explodes in the middle of summer Im moving on to something else.
Oh I forgot! The official worst ever was this fake Boli my buddy got from some guy in Chicago, "you know theyre real cus hes Cuban" Muscled through 10 min of it until I couldnt take it any longer. Profile smacked of baby spit up, burnt hair and dumpster fire. Yum! Couldnt get the taste out of my mouth for a week....not exaggerating.