I tend to prefer the flavor of top-coil. I think it's more "true". But then I like bottom coil because you don't have to tilt and twist. In the end good flavor is more important to me. I use both.
I have a few different types of clearos now as I've experimented, and I honestly just can't like my bottom coil mini clearos from SI. First, half of them leaked everywhere. Finally figured out how to get them to stop leaking and every last one tastes like burnt plastic (and burns my throat), despite the juice flavor or how long I let them wick before using them. I haven't had any similar issues with top coil with regular wicks, am I doing something wrong or are the ones from SI just junk?
Both my vivi novas leaked. My I clear 30 has been my go-to. Tastes great no leaking but I do love my 2ohm evod. It's sleek and works good. Pretty cheap too.
We use the minis from SI and we love them. None of ours have a burnt taste nor do they leak. SI is our sole provider of vaping items and we haven't had the first problem with them. Don't give up on them. they have good prices and great customer service.