All eyes on me has higher highs life after death more consistent as a concept and vibe/album
Life Agter Death is by far the superior album to me. It has some of the best storytelling songs we've ever seen in the genre. Whereas All Eyez has too much filler and subpar features.
OP you could update your post so this is more of a discussion rather than people just saying an album name
This is actually a lot harder than I was expecting lol, thought LAD would be the easy answer but ALOM got some insane tracks
Overall Life After Death has less filler and is a better album but All Eyez on Me has the higher highs. Both are classics tho

I prefer AEOM by a hair.
LAD was technically more consistent and polished but it felt a bit playlisty to me.
Both Pac and Biggie rapped their asses off and have tons of classic songs on the albums but AEOM even with some of its messiness felt more authentic to Pac's vision whereas LAD felt more like Bad Boy's vision for Biggie.
It's funny too because I remember when niggas online would claim that AEOM was Pac's "sellout" album for Death Row but the album actually feels very true to Pac's station in life at the time. He was living the high life as a new rap star in the West Coast while still maintaining his social consciousness.
LAD, by contrast, feels a bit mixed in its vision because you see glimpses of Biggie's life as a street dealer hustling to make ends meet similar to RTD while also having blatant shiny suit/flashy songs that sort of had a different vibe to it.
Both albums have lows like What's Ya Number and Playa Hater but the highs are super strong on both.
Arguments can be made for both though.
Life after death
Never herd of them i like the title all eyez on me because it has an z instead of an S behind Eyes. So ill pick that
Life After Death
And Biggie in general made the superior albums (from a short sample size)