1.) multi-tool
I don't know! I still carry an original leatherman, and have never bothered to replace it, as nothing has grabbed me and said "Buy this one"

2.) small locking folder
Money no object? I'd love to EDC a Lindsay engraved Lake folder (and YES, I would carry it if I could afford it!), but at 20K for a knife..... SEMI-Realistic? I can't see replacing my DC Munroe Chimera

3.) lighter (or other spark/flame producing implement)
Bic - why carry more

4.) small LED flashlight
Arc AAA on a keychaim, ARC LS in the backpack

Sounds exactly like what I carry - I'm worth it