Giovanni, he was badass and his idea was simple. I liked the 8th gym battle with him as well in FR/LG
His idea was pretty simple indeed, but I feel it's what makes him iconinc. I don't really remember if there was a difference in FR/LG, is it just because the fight is pretty challenging?
I didn't want to say anything before because my brain was clouded by brand new game hype, but now I can say I don't think I'll ever forget about Guzma and Lusamine. They were so fun.
Archie and Maxie also come to mind just because of how damn ridiculous their plans were.
Guzma was pretty fun, but he started to get on my nerves because he kept repeating basically the same sentences over and over again. I felt pretty bad for him when you find him in the Ultra Hole ;^;
Lusamine story is so tragic, I wish we could somehow tell her that her husband is okay...She looked pretty insane however, I'm not sure how Lillie plans on "fixing" her. Overall I did like her character, and her merging with Nihilego was quite surprising to me!
He wanted to destroy the current world and create a new one - using the Pixies and Dialga/Palkia - to create a new, empty world without any emotions. He's like a modern Stoic. Also he's 27 but looks effectively 40.
Also how could I forget Lusamine. She really was a different kind of horror.
He's 27?! What! I was sure he was the oldest of all the villains to be honest, wow. I remember now, I feel his storyline in Platinum is better, it's super creepy he got dragged into Giratina's world but I guess he got what he wanted...So all in all he is the only one that succeeded, in a way :o
Yeah, Lusamine wasn't just an evil mastermind, she was insane/brainwashed. Their experiments are so creepy ;^;
I wasn't really a fan of Ghetsis in BW but in BW2 he was pretty intimidating, especially in the way he interacted with N as mentioned above. I'm not really sure if he'd be my favorite villain though, I'm also a pretty big fan of Giovanni and Cyrus + Team Galactic Admins.
Team Galactic admins are probably my favourite admins ever, as well as Team Flare admins. Their design was pretty cool, but they are pretty similar in a way, so I have trouble telling the differences in their personnalities.
My most memorable villains are certainly Maxie and Archie. Their teams just seem to mess around with each other and not achieve anything really, I can't really take them seriously that way. Somehow that's what makes me love them all the more. :]
They're pretty much like Team Skull thugs in a way :P They had a pretty cool rivalry, and in Emerald you get to fight both of them, which is pretty cool. They really made Ruby and Sapphire two different experiences, unlike most games where the differences are so slight, you don't even notice! Their grunts and admins were pretty unique, and much more involved with their leader than other teams, in my opinion.