- with a science career i choose the science vessel
- with an engineer career i choose the cruiser vessel
I find that a bit limited. Afterall; your captain skills are not restricted by the lack of stations. And you can max your officers skills as well as your captain skills in ship weapons; starship operations or engineering.
For skills; the ship will only define the consoles / stations available. A science officer will be decent in every ship; and not necessarily better in a science vessel.