These are some of the top 20 best villains In anime history (Placed According To Overall Basis Including writing, charisma, etc.)
(It will include one niche pick btw whom i like)

Format :- name of character - Nickname- Anime name - iconic Line

21. Lucifer - the Satan - Devil man Crybaby - "Why am i ... Crying?" (Included This at 21 It was an opinion based pick as i liked him alot)
20. Lt surumi - Grim repear - Golden kamuy - "think of me As your own grim reaper, as i desire i can Blow away fire from ur candle of life"
19. Ozu - little devil -The tatami Galaxy -"I deliever of mischief has come Into your life, to deliever it"
18. Kyuubey - incubator - Madoka Magica (Included as i wanted a shojo in the list)
17. Vicious - poisonous Snake- CowBoy Bepop
16. Sato - Hat - ajin - "Lets play ball"
15. Yoshikage Kira - a man who just wanted peace- JoJos - " My name is yoshikage Kira i live i am 33 year old, who lives in northeast of Marioh"
14. Shogo makishima - The white King- psycho pass- " only time people have value, is when they act according to thier will"
13. Hitogami - Enjoyer of despair - mushoku Tensei (Based on LN)"Rudeus, what if i tell you... I was the one behind The death of your wives... Ah i cant Control my smirk against your despaired face."
12. Bondrewd - sovereign Of Dawn- made in abyss - " May your journey overflow with curses and blessings"
11. Ryo- fui - Raccoon Dog- Kingdom - "The most powerful weapon of a king is not sword, its money!"
10. Meruem - ant king -HxH- " Can you Call me by name for one last time... Komugi?"
9. Askeladd - the ashen lad- vinland saga- "these days a sheep must wear wolfs Skin to graze"
8. Eren yeager - Freedom's slave - AOT- "I really hate you, mikasa" ( i take him as a final boss)
7. Funny valentine - mr. President JoJos SbR - DOjYAhhhhh {Manga but I wanted to include him}
6. Griffith - Falcon of light - berserk - "A dream is what you live for yourself, not for others"
5. Johan Liebert - the Monster - Monster - "well Richard,How about a drink?"
4. Utsuro - The void - Gintama {Debatable} - " no matter how Far Humans have evolved, thier psyche Will always Be forced to determine who is predator and who is pray"
3. Kiruma souichi - Hal - Usogui {manga but i wanted him) - " it was for todaay for this moment for me to be perfect... Ive achieved it... I need no more"
2. Beatrice - golden witch - Umineko -{considering the VN}- "....mm.. keep going..."
1. Your Fav villain character (joybait)

PS: did not include light bcz he's So good written im confused if he is villain or no.
HM from One piece , naruto, bleach:- Doflamingo , Aizen, madara.