I used to read for fun often and compiled this great list of first lines (here) and last (see here). Somewhere in that list (probably here) is a post on the importance of first lines.
Regardless, thanks to these classes I've been involved in, there isn't as much time to focus on novels or first lines in novels. Who wants to read the first line in APA's 7th edition of their Style Manual? Right! No one.
I did get a chance to start a novel last month, and I'm working through it slowly. Here is the first line:
The second time he died was more difficult than the first. More difficult because he saw it coming.
He stirred to consciousness between the two events, twin sources of light above him seeming like a pair of struggling midday suns behind thick layers of cloud. He was flat on his back, that much he knew, and beneath him were sheets that had been washed too many times and stretched tight over a thin mattress.
The voices were every bit as opaque as the light, a man and a woman, neither familiar. He could make out most of their words, a disjointed back-and-forth that seemed to arrive through a soup can.
How long had he been awake? A minute? Two? Long enough.
A shadow blocked out the suns, and again he willed his eyes to open. There was no response. All voluntary movement had ceased. Then a brush of warm breath came across his face, moist and without scent.
Larsen, Ward - Cutting Edge
It's not bad. It's intriguing and a bit so out of the norm that it leaves the reader wondering what the hell the author is talking about.