I don't think I'm alone in saying sit-ups aren't fun. I don't know if it's because I need to have someone or something there to make sure my feet stay put on the ground during the full movement or ...
Plus, which move is more effective for strong abs.
The hardest part of working out consistently? Getting started. Once you do, though, you start feeling (and soon, seeing!) the positive impact on your mind and body. But with so many workout options ...