If you want to use your AD credentials only then you can use NTFS as well as DMS. Configuring and maintenance in NTFS seems a bit easy to me but it is your choice.
Just make sure that in Authentication type you have selected NTLM because then only user's NTLM login info will be passed to Web server. The authentication page whatever you choose does not make difference. it is Authentication type which makes difference in the way users are authorized.