So I have two Kratos, one will be all lascannons and the melta cannon to hunt vehicles/dreadnoughts. But what should I do with the other one? I dont want to double melta Kratos, so do you guys think the normal cannon or just go full choom?

The normal cannon feels like it just doesnt do anything I really need for such an expensive model, and Choom looks cool but feels weaker, but more fun.