It really depends on what you want, but in my opinion, there is nothing better than the sunlight.
Check out Jan Saudek - he's one of my favourite photographers, and he made almost all of his works in one basement room, with one window. He chose the room because of this light and he used only that, despite having limited time when it was just right.
Many photographers have their favourite time of day, such as the
golden hour. And timing should not be an excuse... I used to invite actresses to my photography project, and sometimes the light I needed to have was at twilight, or during rain. So here they were, waking up in the middle of the night (which 4-5 a.m. is, for us artists) or soaked in the rain. I'm forever grateful. ;)
One thing useful if you do choose to work with daylight is good lens brightness. Some cameras (even in mobile phones) have algorithms to calculate sharp night photos; my phone can produce interesting effects with that.