I freaking love the Twins. Their battle is always hard and intense and on the toes. I like how it's like fighting two EoC's, but one of them can breathe shadowflame at you which can kill you quickly if your inexperienced, while the other one can shoot lasers, and even more rapid lasers in Phase 2. I also find their names, Retinazer and Spazmatism so iconic. When I hear those names, I instantly think of them.
I don't really have a least favorite boss. If we are talking about who I dislike due to difficulty though, then it's FOR SURE, FREAKING
PLANTERA!! I always struggle against her second phase, even though I have a giant arena in the Underground Jungle! She's always
ing stressful for me in phase 2 ;-;
Other than Queen Slime, and Skeletron Prime in my No Immunity Master Mode playthrough I did a few days ago on 1.4 TModLoader, Plantera hurt me the most. Get hit by any of the tentacles in No Immunity Master Mode, and it's instadeath within less than a second! I died SO MUCH TO HER in my No Immunity Master Mode playthrough that I actually had to try a strategy I came up with myself, luring her out of the UG which enrages her, but since it was on No Immunity, she didn't really gain loads of defense for enraging, but I died alot when doing that strategy since she is even faster when enraged. Somehow eventually though, I beat her with that strategy and BOY DID IT FEEL SO GOOD. (After her, the rest of the No Immunity Master Mode playthrough was very smooth except for the Solar Pillar of course.)