For me I think all of them have been terrific and with some being familiar faces returning for a new threat, or a new variant of that same person, while others are made their full live action daybreau like with the Void, Galactius or Red hood. My favourite has gotten to be Galactius because I'm glad we got a proper version of the character is who isn't a villain who poses a commands a deadly threat to the beings that he sees and destroy and he felt real, scary and huge without making it silly or goofy. The void was amazing to see the evil and corrupted aspect of sentry being as a metaphor for emptiness and nothings into a Wonderland timeloop of awful and regrets. And the Hood was also great and having the mephisto tease was great and that tag at the end will get payoff soon. Norman Osborne from YFNSM was really good as an animated variant of the character and being different as well. Leader couldn't been better, but it was decent enough.
Who is your favourite mcu 2025 villains or antagonists of the year?