Collector- I would do Hoid, Wayne, Shallan, Nomad, and Lift. I just want to see how this smart-aleck convention would go, and Lift would sneak in anyways whether or not I invited her.
Wayne is awesome, and I would say my favorite compounding twin born is double steel-I would wonder how fast they could get. Favorite non-compounder would be F-zinc A-tin-being able to sense so much and process it quickly would be cool.
Tide, I’d say velociraptor or quetzalcoatlus. Dragons are good, if they can be raised without the influence of other dragons… you know the type I mean.