My current focus has been to reacquire BT/Alts and have bought a dozen or so in the past month. Looking back, I remember seeing the first grey proto pictures of Smokescreen in 2003. Simply put, the line promised to be a Masterpiece-worthy line of updated G1 toys. It certainely paved the way to a new level of complexity in Transformers to come. For me, the Mazda RX8 mold remains the best of the line. Binaltech Laserwave is my personal favorite. That metalflake purple really stands out and is gorgeous to look at. I love Overdrive's simplicity, but his limited knee movement makes him lose point. Grimlock was initially the toughest to figure out (I'm looking at you, overly complex arm transformation!) Others like Rumble and Jaguar Ravage felt rushed, almost like they didn't fit with the rest of the line. Alternators are so nice in Alt mode, that I prefer displaying them in alt mode, rather than in robot mode. That said, what is your favorite mold? What was the most fun to play with? The most glaring flaw?