I personally prefer Boxor, It was one of the last sets I bought and I wish I had bought it earlier. First of all: this set is the ONLY official set that has the original matoran build and it was the best.Second: this set is so fun to make stop-motion videos with, believe me.Third: 2001-2003 BIONICLE sets are the best lego sets ever!But... If this fella doesn't count: I will take Makuta Teridax from 2003Best Titan ever: fun to build (actually pretty hard ), he's just unforgettable In the BIONICLE universeAnd he's just EVIL and that's just AWESOMEEVIL IS AWESOME :3Grtz,WhenToasFallBOXOR ooooh yeah! Best set ever, Matoran rebellion was always an awesome idea and they brought this set who satisfied EVERYBODYRight guys??--> Doesn't count? : Makuta Teridax for sure, most epic BAD BOSS ever!!