The Phillies seem to have flown under most people's radar, except for mimic's at least. 
Seriously though, when the playoffs began I don't think very many people had them coming out of the NL. Of course, they still haven't. No offense intended to any Dodger fans. However, that "under the radar" result may have been a key reason for their success. There's less pressure. They do have strength in their fielding and pitching, which aids you particularly in the divisional 5-game series. So far, it's been a boon in the league series too.

Seriously though, when the playoffs began I don't think very many people had them coming out of the NL. Of course, they still haven't. No offense intended to any Dodger fans. However, that "under the radar" result may have been a key reason for their success. There's less pressure. They do have strength in their fielding and pitching, which aids you particularly in the divisional 5-game series. So far, it's been a boon in the league series too.