AE Script to Get Individual Word Position

Try this:

	var masterText = "All I can ever be to you";
	var splitMasterText = masterText.split(" ");
	var masterLayer = app.project.activeItem.layers.addText("");
	masterLayer.name = masterText;
	var masterTextSource = masterLayer.sourceText;
	var masterTextDocument = masterTextSource.value;
	masterTextDocument.justification = ParagraphJustification.LEFT_JUSTIFY;
	masterTextDocument.fillColor = [1, 1, 1];
	masterTextSource.setValue(masterTextDocument);
	var cumulativeText = "";
	var newText ;
	var masterRect;
	var newRect;
	var delta;
	var newTextLayer;
	var newTextSource;
	var newTextDocument;
	var oldPos;
	var newPos;
	
	for (var i = 0; i < splitMasterText.length; i++){
		newText = splitMasterText[i];
		cumulativeText += (i > 0 ? " " : "") + newText;
		masterTextDocument.text = cumulativeText;
		masterTextSource.setValue(masterTextDocument);
		masterRect = masterLayer.sourceRectAtTime(0,false);
		newTextLayer = app.project.activeItem.layers.addText(newText);
		newTextSource = newTextLayer.sourceText;
		newTextDocument = newTextSource.value;
		newTextDocument.fillColor = [1, 0, 0];
		newTextSource.setValue(newTextDocument);
		newRect = newTextLayer.sourceRectAtTime(0,false);
		delta = (masterRect.left + masterRect.width) - (newRect.left + newRect.width);
		oldPos = newTextLayer.property("Position").value;
		newPos = oldPos + [delta,0];
		newTextLayer.property("Position").setValue(newPos);
	}

Using the SDK you can get the text layer as a series of masks from which you can derive the shape's exact boundries, *BUT* the masks are in random order, and some letters are composed of more than one mask... so telling the letters and words apart is no simple manner.

there's no ready made solution for this. (to the best of my knowledge, of course)