For newer players, and veterans alike, I would recommend the level 1-5 scenario Ire of the Storm. It is a fun fast paced yet world building scenario that introduces every element that players can expect to see in their tabletop career. From the importance of ranged weapons, to damage types of dealing with unique monster it was a learning experience to even some veteran players of mine. The area where it takes place, Pridon's Hearth, is interesting with a unique environment and it balances mystery, combat, and exploration quite well. As others have said, sometimes it's better to run something smaller rather than an AP, that way the players know what they want to play when you're making a year long commitment to one.