Are any of these 5 stars worth putting ISO into yet?

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2/2/2
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2/1/2
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0/2/3
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2/1/1

It doesn’t feel like they would pack much of a punch even leveled up to 330 but I figured that I would ask in case someone has specific experience. It feels like my 4 stars will still be where it’s at for a while.

OML is useable from 1/1/1.

Every other 5 needs at least 10 covers in a reasonably good distribution.

That thing the devs said about 5*s being useable with a few covers?
Yeah, not true.