Quien da mas miedo...?

I wouldn't say that either version got Pennywise 100% right. The miniseries version is a little too hammy and silly so that he's hard to take seriously as a threat most of the time, and the new film version is too obviously creepy and inhuman all the time so that you find it hard to believe anyone wouldn't instantly realize his true nature as a monster and run. I guess that new Pennywise is scarier overall but he's not as insidious as the old version.