I don't think there's much, if any, difference in tone. The difference is mostly in feel. You may have an easier time sliding on slightly smaller frets, but you will also run into problems with your fingers dragging against the fretboard. You may be using too much pressure to fret the strings, as taller frets typically require a lighter touch to avoid fretting the notes out of tune. In general, bending is easier on taller frets, sliding and chording is a bit easier on smaller frets. It's also much easier to play quickly on tall frets, as your fingers won't be slowed down by the fretboard as much.
Ryan