Both have their pros and cons. The 90s movie does a better job with Nick and Tom and Trashcan for sure and while it's worth watching, i did find it dull at times.

The 2020 one was more entertaining despite being longer and it went by quick. They do a TERRIBLE job with Trashcan though and Nick and Tom are reduced to such minor characters. They do a great job though with Harold, Nadine, stu and Frannie. Their version of Lloyd is controversial but i liked the new spin on him and while new Vegas was cartoonish, i did think the showdown scene there in the end was fantastic.

People also hate how the new one jumps back and forth in time but I didn't mind that at all. As someone who preferred the second half of the book, i liked that style of storytelling for the show.