Easiest Trick: The breakaway. If you don’t consider that a trick, then double or nothing.
The Hardest Trick (By a whole lot): Pyjama Man from Cabin Turorials. I worked on that for months off and on until I eventually got past the 1st two elements. I thought that the first whip that puts you in a 1 and a half mount would definitely be the hardest. It took a while to get that down, but whip after the 1 and a half mount was stupid hard to figure out from watching the video. Once I got past the second whip I finished the trick in a day. So I guess that technically my hardest tricks were both whips to mounts, but part of the overall trick.