Any one will be just fine. If you're concerned about a leak an wax seal with a funnel ,see image), may be what you need but, as a rule, a regular wax seal, (see image) will be just fine. Good luck, Tom

Hi all

For DIY installation I always recommend the wax ring with the horn... seems to help in keeping the wax gasket from jumping off the wax ring while setting the toilet!

I also recommend the 5/16" toilet bolts (over smaller 1/4" bolts)... less wiggle when setting the bowl.

Mark