Locking Nuts v. FLanged Nuts

Quick Question -

I don't have very much experience when it comes to working on cars. But my brother and I are doing a little interior work on a project he has on the go.

We have had to replace the drivers seat due to some irreparable damage.

What are the best type of fastening nuts for replacing a car seat. I've done a little research online and there seems to be a number of advantages to both Locking and Flanged nuts.

Does anyone have any preference??

- Chang