Personally I get my best reactions from simple tricks. Stigmata, 2 card monte, the web, floating dollar bill, and Spongeballs all hit hard and are prtty easy to leatn how to use.
The reason simple is best is for two reasons.
1: Simple is usually pretty easy to learn and one you now it you can practice and practice and because it is so easy it'll look like real magic.
2: Simple tricks hit hard fr no real specific reason other than they just do.
Not to say that harder tricks like ACR and dissapearing the statue of liberty aren't great. Their awsome but simple tricks can hit very hard and are easy.
Those are my reasons.
Dylan P.