Better performance: Michael B Jordan as Killmonger or Bill Skarsgard as Pennywise?

Skarsgard, it's not even close.

I'd like to add that although MBJ is a good actor, his Killmonger behaved more like a high-school bully, not intimidating at all.

Skarsgard, but it is close. Michael B. Jordan was great as Killmonger, but he wasn't as great as Bill Skarsgard as Pennywise. I can't wait to see IT Chapter Two this weekend.

Penny

They were both great for what they were going for but I prefer Bill's whimsical acting in IT.

MBJ has an impressive build but is still a baby face, so I kinda didn't think of him as a great fit for that intimidating role he was supposed to play. His acting was fine, but to me it's the overall baggage. Skarsgard's unique face though was actually perfectly fit and acting to complement it was there as well.

Skarsgard