Hellions are cool. There's so much scope for converting and painting them, they used to be a sub-sect of the Wych cults, Wyches fighting in the arenas on skyboards. Now they're rebellious teens, outcasts who band together into gangs and get up to torturous mischief - what's not to love?
I would never consider the Hellions without the Baron but have run them with him in both editions. They're good, hide well in terrain and take objectives, they even get an extra attack on the way into combat now. They have lost out regarding their saves as all cover used to be 4+ and FnP has got worse too. You'll see a lot of flamers around in most armies and they will ruin your day. I eventually dropped them as they just didn't suit my playstyle but I do miss them. It also depends on what you mean by competitive but you can do far worse by starting your list with Hellions.
Sky Serpent - Drukhari 40k
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