I love contentment. For me, it connotes being at peace with my life -- calm, stability, satisfaction, pleasure.

Edited to add: I don't think of contentment as not having any plans or not wanting anything more, but it is a peace with how things are now. I don't "have" to have something else to be good with life . . . But that doesn't mean I don't have hopes and plans; it's just that my happiness doesn't depend on those things absolutely having to come to fruition.