What's the best new UU?

[Thedrin]

Mesousa:
Maybe that's a new advantage for MP, but in SP, unless the AI's naval assaults have indeed been improved immensely, you wouldn't have to worry about it anyway. Now you'll be able to do it earlier, but properly mopping up your home continent can easily take until Astronomy, and conquering cities abroad has become less attractive due to their increased maintenance cost (and turning them into a colony doesn't seem to be that great a solution since loyalty isn't guaranteed).

Still, conquering barbarian cities in the new world on terra maps looks appealing.

What if you've cultivated good relationships with the [remaining] civs on your continent? What if you started on an isolated continent? Or what, as DrewBledsoe suggested, there are remaining civs on your continent with which you're not on particularly good terms but you'd rather fight someone who can't strike at your home territory.

I've not had an issue with vassals which are on good terms before - angry vassals are another story but colonies will start off on good terms - and I generally work hard on cultivating such relationships so colonies don't bother me.