Is it better for one hiddenfield to save control state with the display, position, left & top stored, or a different hiddenfiled for each.

In the past, I have used one hiddenfield, and then separated the display, position, left & top with a semicolon when I stored their values before a postback. Then to get it back, I just split the string and extrapolate the data.  Is that better, or is it better to have more HiddenFields, one for Display, Position, Left & Top.
I obviously have 4 times as many HiddenFields, but I do not have to split any data from the control to get the information.
Just curios!