DS Daily: Seriously? This castle? Again?

Sorry folks, but we just can't get Castlevania off of our minds this week. One of the things we appreciated most about Order of Ecclesia was its proposal that we traverse environments that weren't all located in a castle (or an inverted one, for that matter). But, regardless, there has been plenty of GBA and DS installments in the franchise leading up to this one. Which of the portable Castlevania titles could you do without or find to be the worst of the bunch?

For those of you who aren't Castlevania nuts, have you played any of the games before? Why not?