I've been interested in the Castlevania series for a long time now, but due to the series' ridiculous backcatalogue of games, I haven't really known where the best place to start is.

I recently found Castlevania: The Dracula X Chronicles for ridiculously cheap so I decided I might as well start there.  I know this game has the original Rondo of Blood and (an apparently updated w/ new voice acting?) Symphony of the Night.

What I want to know is, should I start with the PSP update of Rondo of Blood, or should I start with Symphony of the Night?  I know the latter is arguably the most popular game in the series so I thought it may be a good place to start.

The only other problem I have is, does anyone know what the specific differences are between Symphony of the Night on XBLA, PSN, and PSP?  As far as I know the XBLA version has altered sound effects, the PSN version is the original PS1 version, and the PSP version in DXC has a new voice cast.

Many thanks to any and all replies that can clear some of this up for me.