Sega's last system had a lot of different games. Most of them were first party, but some third party greats were out there, too. It even saw the rival of Phantasy Star as a new series. What do you think the Dreamcast's best title overall was?
My pick is Skies of Arcadia, with Grandia II being a close second. Skies is just a great, classic RPG. Excellent story, fun characters, an an amazingly deep world. The whole exploration aspect is great, too.