What lifespan setting do you play on and why?

Can't choose one as it depends on the save but generally i have normal for challenges, ofcourse and I am planning on alien save as "side" save as I haven't really played with aliens and they don't fit my more realistic save.
For my "main" save that I play as rotational game I use custom lifespan that's actually longer than the ingame long lifespan. That save actually has my first ever made sim and her children and I play just with that family and more like a story. And that save will continue to expand as new generations are born. ( my first sim is only still alive because when i first started i wasn't planning making that save rotational or more realistic save so I had her drink the youth potion multiple times) If I find that the lifespan is too long or get bored with a generation I can just age everyone up or tweak the settings. I just really don't want to feel rushed at that save as I'm attached to those sims and I'm playing it more as a story.