Personally, I tend to prefer Tapas over Webtoon for a simple reason: it has a lot more options for creators and helps you build a relationship with your audience (wall) and other creators (forums/discord). Also, I gained more readers, subs and overall feedback from Tapas than webtoon
The other thing I don't like about webtoon, for example, is the fact that it doesn't send you any notifications, meaning you never know if someone liked or commented on an episode of yours. Webtoon also introduced scheduling (a feature that Tapas already had a long time before) pretty late.
In the end, it's up to you to build an audience and to see which platform fits your creation better!