Chaos Chosen

Chosen are overpriced
Let's compare simple warriors and them with the same upgrades:
20 Tz+shields, FCG, swiftness banner (we want them to get somethere). 385 vs 485. What? It's a chariot. Or 15 doggies But wait. Since we overpaid, we want to keep it running => we want Warshrine too. +125 points (that's another chariot). So...
Our core warriors are brutal yet, often even without any marks/ad.equip. Also, our Super-puper-deathstar-unit-warriors-of-doom cannot be everywhere, sadly. So if you want some special - take halberd warriors and nurgle it. You'll be happy, Nurgle'll be happy, we'll all be happy

But they're not so bad. As already noted here, MSU-Chosen are pretty good.I sometimes use them in themed/friendly rosters (with Shrine, of course!), 2×10 or one unit of 15.

Have fun!