What do you think of my names, and your favorites too?

I really like Natasha and Isabella, even if it is really, really common. Not too fond of anything else though. As for your boys', I love Daniel, and as much as I like Nikolai (though I prefer Nicolai), if you're not of Russian descent, or your baby is obviously of another culture, like Mexican or Asian (I'm just throwing out a few), then you might be better off going with Nicholas or Nicolas.